As you probably now realize, make sure you know for sure what isn't working before you try to "fix" it... definately before spending $$!
Check that the keyboard is OK... plug it into another computer and see what happens. Also plug a known good keyboard into your computer and see what happens. I have had an unfortunate run of keyboards going Tango Uniform silently recently. Most computers will not even boot if the keyboard isn't plugged in due to a setting in the BIOS, but I have had several occasions where a broken keyboard was plugged in and it booted OK but wouldn't work.
If you don't have any spares, take the keyboard down to the local computer store (that sells keyboards) and ask to check it out. Most will do it IF you give them reason to believe you will be buying a repacement if it is bad.
so i gotta get a usb mouse and that SHOULD fix it ,
tax day needs to get here, danny needs a new cpu lol