Im getting overload when running various vsts...sup drummer 2.0, b4, mr ray 73, fm8, edirol orchestra etc. i play for about 20 secs and then i get a lot of random sounds. im running sx3 and i high spec pc, and alesis i/o usb 1.0 audio midi interface.

i could afford firewire if that will help?!?
VSTs are *very* processor and RAM hungry. At least, good ones are.

Just curious... Why are you using SX3 when it has been dead for two years? There have been some features that came out even in the earlier versions of the SX line that remedy this. It seems to me that SX3 shipped with a paper manual. Have you checked it?

Could I get some more talent in the monitors, please?

I know it sounds crazy, but try to learn to inhale your voice. www.thebelcantotechnique.com

Chris is the king of relating music things to other objects in real life.