try Belkin.. the Shield Eclipse, which has a main body of opaque, coloured TPU with hard, clear plastic on the back of the case's upper half, is much sturdier than the pixelskin HD, is almost the exact same size(albeit with slightly rounder edges) and has a nice, snug fit. there are other models which are without the hard plastic section, available in either full opaque or transluscent TPU.
otherwise there is the Barely There by Case Mate, along with several other models which fit the bill.
one of my favourite manufacturers so far is SwitchEasy(try the Nude) as they provide covers for both charging port and 3.5mm earphone jack, which I really like, and two of each, no less. also, their Colors range features coverage of the entire section below the screen, including the home button, which is something almost all other standard cases lack.
finally, there are many copycat versions of the pixelskin available which are, according to some reports, better than the original, not to mention cheaper. so, if you really do like the pixelskin HD design, I would go for one of those.
http://www.belkin.com
http://www.case-mate.com
http://www.switcheasy.com