Download these three albums and they should hold you over for a while.

If you don't have a torrent client download Bitcomet here.

First album is from Armin Van Buuren called State Of Trance.

Link to file.

As for Tiesto download these albums:

I'd also get the original mix's from the album Elements Of Life but this remix album is crazy. I'd also listen to his songs Adagio For Strings, Flight 643, Traffic, Love stoned(Tiesto remix), Just Be, Dance For Life, Fallen(kind of hard to find, great song off of In Search Of Sun Rise 6 album, I believe), Lethal Industry. There's more but I cannot think of them right now.

Download here.

Benny Benassi is also another good choice. Here's a link to his "Best Of.." album.

Download here.

That should hold you off for a while.