Actually, my E-Monster 8000 is pretty good...now that I have rebuilt it twice.
Actually, the problems stem from inadequate 120 Watt power supply.
At the bottom of the Hardware cycle earlier this year, I picked up an ATX case with a 350 Watt Power Supply for 59 bucks.
E-Machines typically use a Micro ATX form factor...the rebuild took less than two hours.