Nephtys - The Dice Roller is at the bottom of your post after you post it (IT's like an edit function). It's a secure dice roller that once you roll, is added to the post permanently, and you can't change it.
*Also, if you click the "Save and add more* button, yes it does save them until you hit ROLL, but It doesn't always show the list of what you've got saved on the right like it should, so don't worry that it's not saving them*
Ranger - I think Albedo allready answered most of your question. Buffs are one way of improving your attack, the other way is situational - Finding ways to get their Flat footed and/or Touch ACs.
Core only, the easiest way is an Arcane trickster with a Brilliant Energy weapon. Your opponents will gain Luck, Monk, and Deflection bonuses and that's it. At 20 core, the best THAT AC will be is ~30=-40 for a fullout AC Twinked monk-build.
As far as GETTING AC high with core, thats also not too dificult. Heck, lets see what we can do without templates OR spellcasting... WITH A KOBOLD!! MUAHAHA
[sblock=Example NONCASTING Core AC build]
Kobold Monk 2/Fighter8/Duelist 10
Dexterity 34 (18 base + 6 enhancement + 3 lvl + 5 inherent + 2 racial)
Wisdom 30 (18 base + 6 enhancement + 1 lvl + 5 inherent)
Intelligence 30 (18 base + 6 enhancement + 1 lvl + 5 inherent)
Feats(6): Weapon Finesse, Improved Natural Armour X5(Monsters Manual)
Fighter Bonus Feats(5): Combat Expertise, Dodge, Mobility, 2-weapon fighting, 2-weapon defense, mobility
Items:
+6 dex/wisdom/intelligence enhancers
+5 books: Dix, wis, int
Bracers of armour +8
Ring of protection +5
Amulet of natural armour +5
+5 defending weapon
Total AC: 10 base + 1 size + 12 dex + 10 int + 10 wisdom + 8 armour + 11 natural armour + 5 deflection +5 defending weapon + 5 Expertise
+ 13 Fighting Defensively + 2 shield +1 Dodge=93
FF: 45
Touch: 72
FFTouch: 26
SO, total fighting defensively AC of 93 vs single opponent (97 vs AoO).
I worked this up in about 20 minutes... it's not complete, but it's just to show that it's not impossible.... I mean this is using
JUST the core 3 printed books and no spellcasting, and I'm sure others could point out things I've missed.
NOW, using this guy as a Sendoff for trying to hit him..
His AC is insane for 20th level, but his Flat-footed touch AC is only 26... EASILY hitable by a lvl 20 fighter type. All you gotta do is catch him with his guard down. Most opponents have a way around their 'super-powers'. You just gotta find their kryptonite.[/sblock]
ON another note, the reason you won't find many Elf Builds is b/c most people not using Level Adjustment races use Human base for the bonus feat, or if they do use a base race that gives them the proper stat bonus, then Halfling is usually more appealing than elf from a Mechanics point of view when doing the same job.
That doesn't mean you cant MODIFY builds to make them elves.
OR we could do what I did with Ghostcat. You post up your concept/first draft/skeleton build/whatever, and We'll offer suggestions.
And finally, Dharuhk - So I.. er.. Fudged up.. I was going through my character before work today just doing a last final touch up, and I noticed that I'd completely messed up my spellcasting (I had been adding my Lyric Thaumaturge levels to my Wujen casting, but I just noticed that they specifically state they can only be added to BARD)... So that changed how my spellcasting worked, and it may take me a little longer to get my spell list fixed up...
Sorry

I still would like to be in the starting party, however. I can guarantee I'll have it up before I cast anything.