knore - there have been quite a few strut bars going around lately for around $120. I have not seen any of these (like the ones from Mase's group buy) but I did buy one off ebay about 6 months ago and it was pretty heavy and u could feel it flex just by putting my body weight on it.
At the end of the day what you really want is no flex, then weight, then rice. I think the brand name bars are going to be better, but if the price difference is worth it, thats up to you.
I cant help you with where to get them etc.. but if you do chose to go for a Jap brand, the best bar by far is the nismo bar with master cylender stopper. They are really strong, light and have a brake stopper built in.
Dave.