Dell has had a shaky customer service program. HP/Compaq supplies a lot of machines to corporate LANs, as does IBM. For myself, I'm an IBM person, I have or have had eight IBM/Levono machines.
I looked at the iMac MA1999LL; Intel Core Duo Processor(1.83GHz)512mb DDR2-667 RAM;160GB 7,200RPM Serial ATA Hard Drive; 8x SuperDrive 2.4x Double Layer DVD RW Drive; ATI RADEON X1600 Graphics Chipset; 10/100/1000 Gigabit Network Adapter;Wireless Extreme Adapter; 17" screen;MAC OS X 10.4 "Tiger" AND