One more thing..I think you are right about there being another reason GUI does not load sometimes. And I think it has to do with USB. That USBEHCI error has given me problems with every distro I have tried. Under my usb in system profiler it shows usbohci loaded and not ehci. My usb ports also run very slow. This is going to be my next project. Getting full usb with no errors. Here is my system specs:

HP Pavillion a6030n
Amd athlon 64x2 4800 dual core
mcp61 mobo with nforce 430 chipset <------ Prob my problem
one sata harddrive
one IDE dvd/cd burner <----another prob
2gig ram
nvidia 8400gs 512 pcie