I know there is a thread on SM bars v. clip ons over in the FAQ. I just recently switched from Woodcraft clipons to SM Type 1 bars. The clips, which I had mounted below the top triple, were just a little too low/agressive for me. They killed my back particularly when commuting. Also, I hated seeing that empty clamp on top of the triple. So, I posted an ad on svrider.com to see if anyone wanted to do a straight-up swap of their SM bars for my Woodcrafts. I got about 4 replies the first day!
I have to say, the SMs are perfect. They give a nice, aggressive stance that is just a little higher than clipons but much lower than stock. I find the stock bars to be too 'ape-hanger-ish'.
I just have a couple pics so far:
Here is a link to the SM page. They also sell Type 2 bars which are a little higher than my Type 1s. Maniac has them I believe.