First, I'm pretty sure my DM is going to see this, so I just want to make it clear, evilbob, I'm looking for suggestions; I'm not griping.
So here's the situation: up until a couple of sessions ago, I had a fairly straightforward 8th level human wizard. Then the party went up against a vampire, and as a result of a few bad rolls and tactical decisions (and being horrendously unprepared for such an encounter), we got our clocks thoroughly cleaned. We woke up 5 days later with a tremendous urge to drink blood and a niggling afterthought that we really should have coffins. By the way, all of this happened on the Plane of Shadow, so no sunlight to worry about.
Our DM took mercy on us and gimped the vampire template a bit, making our level adjustments +4 instead of the standard +8. We kept the DR, blood drain, ability adjustments, spider climb and some other stuff, but lost things like dominate and create spawn. But that's not the point. The point is that now we're facing encounters that are 4 or 5 levels higher than my casting abilities. The main problem I've run into is spell resistance; I just don't seem to be able to roll high enough to break through. Also, our opponent's saves have increased accordingly, but I'm lacking higher level spells to bring up the DC. Even with Spell Focus (evocation) and Spell Focus (enchantment), most things we're fighting seem to be making their saves pretty easily.
So the question is this: what can I do to increase my caster level checks and save DCs? Feats are low on the list, because it's going to take about another 42,000 XP before I get to level 9 to have one. Magic items are better, but buying them will be difficult; we've been pretty well ostracized by society because of our condition (not to mention our resident meathead went and intimidated our best magic dealer into refusing to associate with us). Any 4th-level-or-lower spells that ignore SR and don't have saves? I don't have a problem making ranged touch attacks. Even plain ranged attacks are okay.
The mêlée fighters are having an easier time of it. They've got DR and Str bonuses. The biggest thing I got was +2 Int. How would you make the most of it?

So here's the situation: up until a couple of sessions ago, I had a fairly straightforward 8th level human wizard. Then the party went up against a vampire, and as a result of a few bad rolls and tactical decisions (and being horrendously unprepared for such an encounter), we got our clocks thoroughly cleaned. We woke up 5 days later with a tremendous urge to drink blood and a niggling afterthought that we really should have coffins. By the way, all of this happened on the Plane of Shadow, so no sunlight to worry about.
Our DM took mercy on us and gimped the vampire template a bit, making our level adjustments +4 instead of the standard +8. We kept the DR, blood drain, ability adjustments, spider climb and some other stuff, but lost things like dominate and create spawn. But that's not the point. The point is that now we're facing encounters that are 4 or 5 levels higher than my casting abilities. The main problem I've run into is spell resistance; I just don't seem to be able to roll high enough to break through. Also, our opponent's saves have increased accordingly, but I'm lacking higher level spells to bring up the DC. Even with Spell Focus (evocation) and Spell Focus (enchantment), most things we're fighting seem to be making their saves pretty easily.
So the question is this: what can I do to increase my caster level checks and save DCs? Feats are low on the list, because it's going to take about another 42,000 XP before I get to level 9 to have one. Magic items are better, but buying them will be difficult; we've been pretty well ostracized by society because of our condition (not to mention our resident meathead went and intimidated our best magic dealer into refusing to associate with us). Any 4th-level-or-lower spells that ignore SR and don't have saves? I don't have a problem making ranged touch attacks. Even plain ranged attacks are okay.
The mêlée fighters are having an easier time of it. They've got DR and Str bonuses. The biggest thing I got was +2 Int. How would you make the most of it?