I've owned two (at the time) tip-top of the line Dell laptops and they are of superb quality.
My original was a Inspiron 8100 P3 1ghz, 512mb ram, 32mb Gf 2go and CD burner. That thing has lasted me for a long time and I still use it to haul around and check switch ports and stuff. Its been dropped and all sorts of stuff and still works. It even ran games pretty well for its time, used to LAN on it with HL and Wolfenstein.
My current is an Inspiron 9100 w/ the WUXGA screen and P4 3.2ghz, 512mb ram, 80gb, Radeon 9700 mobile, dvd burner, etc. It also is a top quality laptop that I have gamed on quite a bit.
Desktop machine: 2 x Opteron 246, Asus K8N-DL, 2GB PC3200 ECC Reg., XFX GeForce 6600GT, 74gb WD Raptor, 2 x 19\" LCDs, Windows XP x64
Server machine: Intel P4 3.0GHz 2MB EM64T, ECS i865pe, 1GB PC3200, 36gb WD Raptor, Windows Server 2003
Laptop: Dell Inspiron 9100 (Intel P4 3.2GHz 1MB Prescott, i865pe, 512MB PC3200, Mobility Radeon 9700, DVD+R/DL Burner), Windows XP
Linux: P3 450Mhz, 386MB ram, Slackware 10.1 (Running mySQL/Apache)