Plane Sailing
Astral Admin - Mwahahaha!
The at-will cantrips are alot of fun, even in battle.
I would love to play a wizard myself mostly to see what I could do with the cantrips - I agree that they seem like a lot of fun, although they depend a bit on imagination of the user (which might be this chaps problem - lack of inspiration about how to use them).
And with spells like Flaming Sphere, I really do pack a punch when I need to.
The sustainable dailies are the only wizard spells that seem to have some real oomph to them.
I also strongly recommend picking up a Mnemoinc Staff from the Adventurer's Vault. It lets you swap prepared spells for a different spell in your book. This has made a huge difference for me in playing my wizard, as now I can often pull out just the right spell for the situation.
Don't use adventurers vault, but I wonder how wizards would fare if they were just allowed to have access to either of their two daily attacks at any power level? Rather than allowing them to prepare one or the other, just let them choose at the point of need? That would give the wizards more versatility than the other classes, but probably not too much considering the generally lower effectiveness they have...
Also, I've amassed a large collection of rituals, which have at times been very useful.
Rituals are the big disappointment in the PHB. They should have stacked it with a lot more rituals of all kinds (especially at the lower levels). Plus wizards should get a ritual every odd level rather than two every 5 levels.
It might be interesting to allow wizards to cast a ritual in combat by expending a healing surge along with making the check (and possibly making the check itself more difficult)
Cheers