Building a wizard is cool!

[transtemporal]

Having built a nuker/instakill sorc and got him to cap, I decided to build myself a drow pure wiz (maxed int/con, 8 wis, everything else average). Quite a different experience and quite enjoyable but with the surplus of feats, the danger is I'm going to build a wiz that does a little bit of everything, but no one thing well. To that end I'm probably gonna go either cc enchanter (with school focus and gtr school focus and heighten on all the time) or debuffer necromancer (with the same feats), with the reasoning that these schools give the most bang for the buck.

Got a couple of questions for you wiz experts out there...

1. Any opinions on which of the schools is the better? Any other schools I schould consider specialising in? Abjuration is good for dismissal and banishment but thats about it. Conjuration is pretty lame.
   
2. I have a ton of skill points. Enough that I can afford to max out concentration and lavishly put the rest into cross-class. What cross-class skills do wizards favor? Balance, Jump, UMD, Diplo?
   
3. On my sorc I had to pay for meta feats with my first born. Now I get them for free.
   
   1. What order do you get your meta feats in? Any you avoid getting (I'm looking at you Eschew Materials!)?
   2. What other feats are good to pick up? School focus, gtr school focus, mental toughness, imt, spell pen, gtr spell pen?
   
   
4. I'm planning to go acid/electric enhancements for nuking (just for variety). Probably grab energy of scholar and spell pen line as well. Anything else useful? Are the meta improvement ones worth it for a wiz?

Cheers,
trans