2400+ modem for IIgs?

[st40q@elroy.uh.edu (CHRIS MOONEY)]

I have just gotten my old AppleIIgs back from my brother, and am hoping I can
resurrect it. I am now in the process of getting the roach nests cleaned out, 
and would like to know if anyone knows of where I can get a modem for it(it
has a 1200baud, but it's a real yawn). I have a Packard Bell 2400 baud modem
I got from my brother when he upgraded his new PB to a 14.4, and was wondering
if there is any place, especially in the Houston area who exchanges these 
kinds of things, or even sells modems for the IIGS.
please e-mail with any advice(st40q@jetson.uh.edu), it would be greatly
appreciated.