2002 Chevrolet Impala (Rime Questions) Or IDEAS

I own a 2002 impala and i wanted to get some rimes. I was told that if i were to go with 20's that i would have many poblems with the tranny and also the brakes would continue t ware extreamly quickly. So i figured id go with a nice set of 18's but soon realized that they didn't seem to fit neither my want nor need to get a nice set of 20's.

I figured if i were to drive alittle easyer on my car and then get a upgrades braking system to handle the 20's and hopuflly it would work out.

But i would also like a second or third appinion on what anyone feels i should do.

I will show the rims on my car thanks to tire rack =)

Hopfull there is sumone outthere that could help me out.
http://www.sounddomain.com/ride/2171094/2


they will be located on the second page of my sounddomain site.