OEM gsr/civic si is a fine bar that you can usually get for under $40.
There are also good mugen knock-off bars on ebay for around $50. Just look for ones with NO hinges - IE
http://cgi.ebay.com/ebaymotors/ws/eB...tego ry=33591
A carbing 3pt bar (or similar) is going to be the best since it also attaches to the firewall. They are expensive though...and not really worth it IMO
http://www.rcdevelopments.com/manufa...ing-3point.jpg
Strut bars dont really do that much...dont shell out big bucks. A large diameter rear sway and subframe reinforcement combo will work wonders for handling.