Looking to upgrade my inspiron 1520 (circa late 2007) for a shiny new mbp. Few questions: 1) Among other things obviously, I hope to use my mbp for HD video editing. Would I be better to save some money and go with the 2.0 GHz i7, get the 128 SSD and put the rest towards a Pegasus R4 or R6? Or would I be better off getting a 2.2 i7 and a 500 @ 7200 HDD? Will I see more performance boost with a faster processor or hard drive? 2) This will be my second mac purchase (the first being the 24" iMac I bought nearly 2 years ago) - should I get one refurbished? Don't get too chose the specs but the savings are attractive. 3) Does anyone have any speculation as to how much the Pegasus R4 or R6 are going to be? Or any other peripherals similar to it? I know there hasn't been any official announcement of pricing, but how much should I expect to pay at least? Much appreciated for the help.