I am a (stricly) amatuer guitarist thinking of buying an entry levle digital studio. Considering Roland ED U-9 computer hard disk recorder or Roland BR-8 standalone studio. What are the pors and cons of standalone vs computer based. One problem I think I have is my computer isn't very powerful, K6 233, IDE drive. One other concern I have is with the flexibility of recoding other intruments such as a keyboard. Does that require MIDI in? Obviously I don't really understand the technology that well. Any comments?