I so totally agree with you!
Most of the time I get d/l's OK in Limewire. but finding what you want is a lot harder - either the file's not available at all, or sometimes you have to settle for a text version, not a pdf document; or a lower bitrate of a song then you would have wanted.
I find most all I ever wanted to look for in Mactella, but to date I've only had 2 successful d/l's in a month. pretty crappy success rate - I mean, why even bother if you're just "teasing yourself" with finding great files you can't ever get d/l'ed?
I wish there was a better option for the Mac as well. *sighs*