I'm looking to buy a new Memory Stick, something fast. There have been some new ones lately, like the SanDisk Ultra II, and the announcement of the MS Pro High Speed. However, comparable speed ratings are nearly impossible to find. Does anyone know where I can find speeds for these cards, preferably in x (as in 12x, 40x, or 80x you typically see on CF cards). Also, are there any issues as to getting a card that's too fast? I have aPRO-compatible modelso I assume this won't be a problem...