I still have and sometimes use a set of the Dean Marcum bars. I also have the 1st and 2nd Gen WeezL wings (bought a spare to support the group buys). The wings cost a bit more to make and probably won't be made again for awhile, unless someone can do it better/cheaper I suppose.
The targa bars are probably going to be available for awhile... they cost much less than the wings and do offer some support, but not as much as the wing. I still have my spare wing for sale/trade. For the price, you have to be very serious about keeping the body skrait, w/the targa off. I take my top off every chance I get ;-)