nixon before trying anything.. i really suggest you get VMware-workstation-full-7.1.3-324285, i run mine with 1gb ram and 1cpu. With a dumb down version win 7
works fine

also for other people and you this helps too no matter what version
edit>preferences>memory> fit all virtual machine memory into the reserved host RAM. then sit it just a tad more than what all your machines would need to un.
example. i have 5 VMs, 2 using 1gb and 3 using 2gb so thats 6+2 = 8, i set my reserved memory to 8.5. nixon is the entire vmware freezing or just a black screen?
if black screen might be drivers/GPU.. i had that problem, i had to buy me a new GPU and works fine now