If your 2.6GB (and increasing) of Gmail account is not enough, try 30Gigs.com:
30Gigs.com started off with the idea of creating a “All in one” site for the webmaster and avid computer users. Combining personal file storage, GD2 signatures and anonymous email all in one service, which would be free. Our main goal is to increase our space even further, to 50 gigs, or maybe 100 as time goes on.
30Gigs.com is still in a very heavy beta, and if you are a member, please help us to make it the best mail server there is. We will be offering a section for personal file storage (up to 30 gigs) and a GD2 signature maker to keep your email safe from spam robots. We also offer a unique feature, which allows you to send a email from any address you want…
Registrations are per invitation only, just like what Google Mail did when it was still on beta.
If you need an invite visit Digg here and see if you can grab one from their invite spooler.