I use a lot of the Wave VSt's. Unfortunately they are not cheap but they do special the odd one now and again and they realy get the job done. I found the Masserati collection to be the one I utilise the most. It has presets which are all usable and give you different sounds. It comes with a bundle of VST's for Bass, electric guitar, accoustic Guitar, drums and vocals. I cant recomend it highly enough. Saves a lot of eq problems as everything sits in the mix nicely from the get go when using these.