Well I'm sure that by now most of you guys are familiar with the Case-Mate Naked case. For those that aren't, the Naked case offers full iPhone protection with a play-through plastic front. See
here for more details.
Anyways, I was interested in seeing just how well this case worked, but didn't want to spend $35 on another case. So I bought the "Newest Hard Case with Touch Screen for iPhone" off of ebay, for about $17 shipped. I've been using this thing for about 4 days and I have to say its just amazing. It is identical to the Case-Mate case, complete with the black plastic surrounding the screen (which I think makes the iPhone look really nice, and has received compliments from everyone who has seen it), and nearly unfettered access to the touch screen. I say "nearly" because once in a while it misses a key when I'm typing, and it is a lot more difficult to perform the "pinch" motion. However this case is such a good value for the money that I have recommended it to everyone I know with an iPhone.
This case is also available from the seller for the 3g iPhone for the same price, you just have to tell them which case you want. I'll hopefully post pics later tonight of the phone w/ the case...here's the
link to the auction that I won, just for reference. I have no connection to the seller, it's just the one I bought my case from, and I can say that they ship as soon as you pay.
EDIT:
Sorry for the long delay -- my girlfriend dropped my camera last friday... Anyways, I realize these pictures are semi useless because I couldn't take them with the iPhone in the case (I needed the phone to take the pics) but its the best I can do ATM.