Recommended AGP Nvidia card?

[Kirk Strauser]

I use an aging MX 400 in my desktop machine (FreeBSD 6.0something) and 
really, *really* want to upgrade to something that supports the RenderAccel 
option.  This machine has become glacially slow since some 
as-yet-undetermined upgrade broken that functionality, but I'd ideally like 
to be able to use X.org's Composite extension as well so simple downgrading 
probably won't help.

Any suggestions for a cheap, well-supported card?
-- 
Kirk Strauser