I had planned to get a 12" PB Superdrive but just spotted a bit of a bargain. 15" PB 1.33ghz Combo for £1049 Thats £150 less than the new 12" Superdrive. Would you be willing to sacrifice the DVD writer and speed bump for the screen size. Do the older 15" PB Combos still come with the fancy lit up kb and gigabit ethernet? Is it possible to upgrade to DVD writer sometime in the future? Whichever I get I'd hve to buy another 512mb so memory isn't really an issue.