Hi folks, well, a lot of searching has failed to answer my question and I apologise if this seems obvious, but - I'm thinking of chucking some more memory into this 12" Powerbook, and was wondering if anyone knew any reputable (preferably online) sources for the UK? If researching this topic has taught me one thing it's that there are trusted sources for memory - OWC, Newegg etc - and these do ship to the UK at manageable prices. Surely, though, there's an equally trusted outlet in the British Isles that I could use? And if I could sneak an extra question in here while I've got your attention, what's wisest - would adding 512mb to my current 256mb provide a noticeable leap in performance, or should I stop being so stingy and swing for an extra 1gb? Thanks a lot for any help (and, I might add since I want to seem nice, the help I've managed to get just reading this forum since switching last year).