There are mail order services that do this for a very reasonable price
and at a seemingly very good resolution. You ftp (or other trasnfer)
your image to their site. They produce the 35mm slide and mail it to you.
One such co.: http://www.slides.com/
I've been tempted, but haven't done this to date.
-- r.p.e.35mm user resource: http://www.aliasimages.com/rpe35mmur.htm
-- r.p.d.slr-systems: http://www.aliasimages.com/rpdslrsysur.htm
-- [SI] gallery & rulz: http://www.pbase.com/shootin
-- e-meil: there's no such thing as a FreeLunch.