there are many file-hosts, so take your pick... but then there aren't quite that many that are easy for the downloaders, MEGA is one of the few that seems to work okay with good speeds. The downside is that you have to make an account there. Do some research on file-hosts :)
As Zeratul13 says, it's easier if you make one package of many files (WinRAR, WinZip, 7zip are some progs to use for that. Then it all depends on how careful you want to be... don't use any filenames that are too obvious. Password protection. And so on, it's all up to you. Then it's just a matter of uploading what you've got and share the link here.
Start a new thread here:
http://forums.ffshrine.org/newthread.php?do=newthread&f=92
And then post the link and some useful info like:
Composer, album title, file format (FLAC, MP3 and so on so people can decide if they want it) and perhaps also the quality of lossy files (MP3). 320, 256, 128 and so on so people can see if it's an upgrade to what they have. A tracklist is always appreciated so people easily can see if it's something they already have.
Of course you can also just post it with minimal info, but be prepared for flame wars ;)