If you plan to get serious with the recording part , you might want to check out the built around recording types for example at sweetwater. they are a little more upfront but they are guarenteed and you get 24hr support.plug and play.. atleast use that as a priceline if you start assemblig your own specific system
you can definately build one up..depends on how savvy you are. and most geek shops don't deal with recording oriented machines.
there are so many ways to go with it