Hi all, So I'm about to buy a MBP 15 but I'm having trouble deciding whether a CPU upgrade is necessary. Whilst I can afford to get any of the options, I really don't want to spend the extra if I'm unlikely to ever see a performance benefit. What I will be using it for: Web development (inc VM's). Xcode. General web / word processing etc. It easier for me to just go out and buy the base 2.2 than wait a couple of weeks for the 2.5 or 2.8 and whilst the upgrades are only £68 and £195 respectively I'm really not sure I will ever see a benefit. What do you think?