lian li makes some very nice quality cases, but question is, how big of an upgrade is it from what you currently got?
if anything.. i would go for full tower, just so i could know i have the opportunity to have 8800gtx's and watercooling and such... just safety of fitting crap in
Intel 3770k @ 4.4 GHZ | Galaxy GTX 770 SLi | 16 GB G.Skill Sniper | ASrock z77 Extreme4
2xSamung 840pro 128GB in Raid | 2x1TB Seagate | Antec 750 Watt GamerSeries
Intel Core i3 3220 | Galaxy GTX 650 | 8 GB Corsair Vengeance | ASrock B75M | Samsung 840 120GB