just got a psp and im looking at what memory to buy. i figured someone would have written about this already, but you cant search 'ms pro duo' (all the words are under 4 characters). so my question is do speeds matter? and if they do, which ones are better? ive already seen the post on the fake ones so no worry about those. ive seen online ones by sony, sandisk, and lexar. seems like the most deals are on the sandisk ultra ii one. any opinions or suggestions? right now im thinking to spend around 50 bucks, hoping to get a 2gig with decent speed. saw a recent post on fatwallet for the 2 gig duo pro untra ii for 50 after rebate, but the rebates expired now.