There are a couple of really good choices for all styles and uses:
If you use it for mostly studio work, where ample power can be delivered to the headphone, you can use a high impedance headphone, for this purpose, there is nothing for about 100$ that compares to the Sennheiser HD495/HD497's. The HD497's are updates to the HD495's and sonically similar. The HD495's have memory foam which really helps if you wear glasses because the pressure put onto your ears are spread out over a bigger surface (the entire surface is memory foam). Detachable cords are convenient if you tend to wear out your cables.
If you use it for more portable work, or computer output (you'll need a decent audio out solution to appreciate these can's) - nothing beats the Beyerdynamic DT231 or DT231 Galaxy's. These are sonically better than the Sennheiser's, but with less depth, but requires less power to drive. You can generally find these in music stores for guitar's or so. German build.
I never tried Grado's. For high end audio, or technology that trickles from the highend into consumer technologies, there are only a few good American based companies that are generally accepted and around, and I don't mean Bo$e. Grado Labs is considered excellent, but only gets raving reviews from American based HiFi magazines, and lesser glorious reviews from UK, FR, GR based magazines, that, and I never owned one, so I can't recommend them.
For ear-bud style listening, only Sennheiser has been able to get it right, I owned multiple pairs, MX400 and MX550's, all of them stellar in performance but doesn't look ostentatious if you prefer the simple looks.
For all-around listening, but mostly mobile, you can't go wrong with the foldable Sennheiser's, tried them once or twice before, quality is way above the Jap can's, and the cheap Magnavox stuff. Plus they are avaliable just about everywhere. Did I mention they are foldable ?
That's pretty much the cream of the crop last time I gathered my resources, market for headphones hasn't changed since then, and my personal recommendation, since the Sennheiser HD495's aren't around anymore (my fav's), I'd recommend the Beyerdynamic DT231's, quality sound directly from Germany.
EDIT. I forgot to mention that the Sennheiser's and Grado's by design are not "closed", they look like closed but actually use the back to completely ventilate sound for near zero reflection. Go with the Beyer's then, they are closed, and "old school" looking.