I've used the Dell Studio 17 with a similar setup, and it's great. It works almost perfectly with Ubuntu, but you have to do a little work to get the sound working, at least for me.
Would like to know people's experience with Dell Studio 15 laptop. The configuration I am looking at is following:
Inter Core2Duo - T8600 (3MB cache)
15.6 " 720p WLED (1366x768) Display with TrueLife(TM) and Built-in 2.0MP Web Cam
320GM 7200RPM SATA HDD
4GB Dual-channel DDR2 SDRAM
Internal 8X DVD + /-RW Combination Drive with dual layer write capabilities
256MB ATI Mobility Radeon HD 4570
Has anyone used Ubuntu on Dell Studio 15? Any issues you faced?
Thanks in advance!