Hmmm, that would be me, I guess. The best way to get your feet wet in 4x5 is with an old Crown or Speed Graphic. Not expensive, so not nearly the $$ commitment that a newer camera requires. Yes, you can still get film; depending on where you live, you may have to develop it yourself, but that's fun.
Yes, I just happen to have a Speed Graphic outfit for sale, well within your budget; if you're interested, give me a call at 303/235-0116 (days, Mountain Time) or e-mail me at
fbarrett@aol.com.