Reply to sample management

sooo, upon downloading thousands of samples, ive noticed that ive been sorting through samples that i would never use, and samples that i want to use all the time.

i use ableton and reason, and i like the feature of scroling through your sounds and hearing them play but the shitty part is, you cant really run through the list of samples, listen to them and organize them.

i could use the finder, but the preview feature is a little to slow for previewing thousands of sounds on the fly.

is there some kind of software i can use to do this efficiently?

i hope that makes sense...

also, if anyone knows any good websites with good sample library's that would be awesome!