Help with case & cooling!

OK, I've got some options for my new computer.

1: Buy a FullTower case: Chieftec Dragon Series: DA-01WD
and fans.
http://www.chieftec.com/products/dragon/da01wd.htm

I can have 5 fans in this case, 2 on the top, 2 on the bottom and 1 at the side..
One guy I talked to also suggested 1 sidefan, 1-2 on the bottom and then carve a hole in the roof for a 120mm fan..

OR

2:
http://www.thermaltake.com/products/cases/6000a.htm
Buy a Thermaltake A6000 Xaser II Aluminium..
Which includes 5 fans..

OR
the cheapest alternative
http://www.thermaltake.com/products/cases/5000.htm
Thermaltake Highest Xaser II 5000 Plus

What's the difference between steel and aliminium? other then weight?

The number 1 option will be about 60 dollars cheaper..
What should I do? Both considering price and not..

Sorry for bad english,
Thanks

Aluminum will disapate heat better than steel. I was wondering though, what the hell are you planning on building that you need that many fans in the case? Man, that thing will sound like a tornado sitting there with 5 fans running! Talk about over kill...........

UsHeR_564

"You can run, but your punk ass will only die tired!"