That's the sequential read/write max. What you really need to look at is 4kb random read/write performance since you'll encounter that more so than transferring movies in real life situations.
Thanks for the input David. I'm not tossing up between the Intel 510, Crucial M4 and Crucial C300 ~250GB models. The C300 is hard to find, and even when i do find it, its price isn't much of a bargain (if any) compared to the M4 at all. I don't know whether I should just jump on, or wait for a few weeks/months till price drops and reliability issues reveal themselves..