Okay, I went to B&H and searched for 480gb ssd's and found the Crucial 480gb.
. didn't mention warranty that I noticed but its' specs (achievable only with a 6gbps SATAIII port) are decent, not great.. but decent. It's 2 gens old.d
Then I went to OWC and their house brand had the only 480gb SSD for $365
, only a 3 year warranty (probably what the Crucial above has) and roughly the same specs. I can't tell from OWC's description, but I think it's also 2 gens old. Maybe one.
Then (because I do this all the time) I went to Amazon (or try Newegg) and looked up their Samsung 500gb Evo,
significantly better specs if you can take advantage of them, current generation, and it's $299.. Also a 3 year warranty.
Other things to think about: If you're getting your install kit (data doubler, whatever it's called) from OWC it's nice to have their full support.. I'd rate this as minor. Samsung has a very nice tool kit. When you need i, I'd rate it as major.
Other than that they're both 6gbps SATA6 SSD's, same size/weight/etc.. By now the choice should be a no-brainer. However, if that $35 difference is really bothering you consider that the Evo is can migrate with whatever new gear you buy where you can take advantage of those big differences in performance.. where with any new gear you wouldn't want to load it down with (remember, we're talking 2-3 years from now) a relatively poor performing SSD.
Good luck to you.