Why don't you try file upload Services rather.
like upload.com megaupload.com supload.com esnip.com fileul.com dl.filesend.net
Well still you want to use the web service then try following

It's like Facebook + MySpace + YouTube + Webshots + LiveJournal put together - and its free, and has *Unlimited* storage space!

Go check it out, it is really simply to set up, and you can upload unlimited audio/video/photos and anything else, and easily link them to friends and stuff.

More importantly than storage is bandwidth restrictions. I work for a hosting company and disk storage is cheap, watch out for charges on data transfer. Often you'll get socked for overage charges. Let's say you had a 60 min audio podcast. That's probably only around 60mb. However, let's say you have 1000 people download that podcast, that's 60,000mb. Suppose you had 10 podcasts.... you get the idea.