I'm looking to get one for work (PC/network diagnostic tools) AND play (audio production & gaming)

my minimum requirements are:
P4 2.4GHz
1 GB DDR SDRAM
64MB graphics chipset (RADEON 9000, GeForce 4, etc.)
40 or 60GB 5400rpm HD
built-in wireless NIC
24x10x24 CDRW/8x DVD combo
good cooling
secondary battery
What I've taken interest in so far is:
Alienware Area-51m (P4 2.66 / 1 GB corsair DDR / 60GB 5400HD / RADEON 9000 128MB / 15" UXGA / 9.6lbs / burner,dvd / internal wireless NIC / secondary battery)
Sony Vaio GX700 (P4 2.4 / 1 GB DDR / 40GB HD / RADEON 7500 32MB / 16" UXGA / 8.6lbs / burner/DVD / internal wireless NIC)
Dell Inspiron 8500 (P4 2.5 / 1 GB DDR / 40GB HD / Geforce4 4200 64MB DDR / 15.4" / 6.9lbs. / burner/DVD / internal W-NIC)
AND FOR MY FELLOW FOLDAMITES,
does anyone fold on their laptop? Does cooling become an issue? I'm thinking it might not be such a good idea, but I'd love to hear your thoughts...
thanks for the input..
