Green Gecko wrote:
For daily tasks you're not really going to notice any difference.
My 2.2Ghz Athlon X2 & 2GB 400Mhz RAM is about as perceivably fast as my late 2010 MBP 2.66GHz i7 with 4GB 1066Mhz RAM just browsing the web on it right now. That's down to improved browser rendering engines.
You'll notice with CPU intensive stuff like encoding, Flash apps, and opening and closing programs, booting up etc. But not really during actual usage of most apps. Of course it will be slightly "faster" but personally I don't observe much marked difference between machines doing normal things these days.
HD video is handled respectably by most machines with proper dedicated graphics now.
This. Once the new MacBooks are announced I'm sure they'll be a lot more like the MacBook Airs, so you should be able to configure an SSD. For booting up and launching apps it'll speed it up nicely.
Denster wrote:
Just some extra RAM for my Macbook. To boost it up to 2GB.
Cost 40 quid. Apple wanted 80. I love em but they're robbing bastards!

I got 8Gb ram from Crucial for £35. Is your mac slightly older now? I find memory tends to start off expensive, gets cheaper, but then gets expensive again.