How much do you want to spend, can you build it yourself, or do you want an off the shelf solution.

Intel i5 or i7 Quad Core, or AMD FX Multi-Core, 8GB of RAM, 2-4 750 GB hard drives (at least two, one for your system and programs, one for data storage, i.e., all your Real Track .wav files.

The more hard drives you have, the more space for tracks and for back up of tracks.

Weekly defrag, don't let any drive get below 20% capacity, and make sure you're running Windows 7 64 bit.

What sound card do you have, and do you need a PCI slot for it?

One of these:
http://www.newegg.com/Product/Product.aspx?Item=N82E16883157330

At least one of these:
http://www.newegg.com/Product/Product.aspx?Item=N82E16822136284

You'll be set for a while.

Gary

I'm blessed watching God do what He does best. I've had a few rough years, and I'm still not back to where I want to be, but I'm on the way and things are looking far better now than what they were!