i'm going to offer a dissenting opinion here - imho, these are an awful value if you have no intention to mod (either now or later). in stock form, you get a headphone that has no bass, no treble, mids that are smooth but definitely veiled/muffled (at least on my pair they are). if you have no intention to mod, you will be throwing away $50 ... again, imo (i peg the resale value of used t50rp at ~$87 delivered). in short, the experience will leave you so disillusioned about head-fier's recommendations that you will likely go out & tar & feather the next one you meet.
instead, go to tuesday morning and you might snag the koss tony bennett for $50 or order the carbon nanotube jvc ha-s500 from amazon (or the s400 from your local dealer). i think you'll find these phones to be much more satisfying (& cheaper) in stock form than the t50rp ... & i'm sure that others could suggest quite a few more phones ...
i will also suggest that you find a pr of junkers (trash, garage sale, goodwill) and learn how to take them apart & put them together again w/o wrecking them. this is the first step in learning how to mod ... overcome the apprehension of diy. if you can do this, then by all means, buy the t50rp & embark on a journey to make yourself a great set of headphones at a bargain price.
all the steps to do this are well-documented & if you run into problems, there are plenty of folks here to offer a helping hand.