Yeah I've read the reviews and although none of them are particularly glowing, the 220/1G/DDR3 outperforms the 4650/512/DDR2 AND at reduced power consumption.
According to eXtreme's PSC it's only slightly higher than my 7300LE.
Having read the forums, most people (gamers) dismiss the GT220 as a piece of overpriced crap but it seems to fit my needs pretty well. This
one has my name on it I think.
Don't stress it too much and put a PSU upgrade on the shopping list for the near future.