Desktop only. I'd probably drop and break a laptop if I had one.

Dell 435T

Intel Core i7-920 2.66GHz
6GB DDR3 1066MHz
750GB Serial ATA 2 Hard Drive 7200 RPM
1GB ATI Radeon HD 4870 GDDR5
Dell S2409W 24 inch HD Monitor

Running Windows 7 RC1 64-bit for now.