I use a modded PS3 Mad Catz Brawlstick. (Yup, the WWE one.) If you're not planning on changing the stick or the buttons, then it's a good arcade stick. The stock parts are actually decent. You can also replace the artwork if you want to. I play SSFIV:AE and Melty Blood on the PC using this stick, and I didn't need to download or install any kind of drivers.
I got it for $45, but I ended up spending at least $90 anyway, because I replaced the stick and buttons with white Sanwa ones.
The Madcatz fightsticks are great buys if you want Sanwa parts built in. There have been various editions including Street Fighter 4, Blazblue, and Soul Calibur V. I have the Blazblue one myself. IIRC, the only difference between these sticks are the graphics on them so feel free to buy whatever is cheaper if you don't care or plan to modify it yourself.
Otherwise you could buy a cheaper stick and then modify the parts as you please.
"Jack Tretton, chief executive of Sony Computer Entertainment America, says he is pleased to see so many unsold PS3s sitting on shelves." -IGN