Addco makes a performance rear sway bar for the 92-99s. It'* on their webpage. The price isn't listed, but I called them one day and they said something like $200 for one.
For the front, I don't know anyone who makes an aftermarket one. Stock SE size I believe is 30mm, stock SSEi is 34mm. I broke my SE'* original bar, got an SSEi bar as a replacement, they bolt up fine.
BTW, if anyone is interested, I have another 34mm sway bar as well. The company that I ordered the bar from (gmpartsdirect.com) completely screwed up shipping the first bar that they sent to me. I received an empty box!! (sway bar broke loose and went off into oblivion) After I irately told them of what I thought of their packaging work, they sent me a second bar, this time actually packaging it right. I put it on, worked great. A month later the first bar ends up on my doorstep, courtesy of UPS. I don't need it, but I'm sure not going to pay to ship it back to where it came from. So $50+SH and it'* yours.
1992 Pontiac Bonneville SE, 163k miles - RIP (blew the transaxle)
1995 Honda Civic EX, 5psd