Get Ancient! ;-)
This is an excellent Beethoven cycle. I used to borrow it from the library often - it has been OOP for some time - was pleasantly surprised to see it being re-released - and the big heads up here is that the Amazon price for the re-release is about half of what it used to sell for.
If you are not already a fan of Hogwood and the Academy of Ancient Music (and Steven Lubin) - this set will win you over.

http://www.amazon.com/gp/product/B000E0LB8G/104-0379999-7305558?%5Fencoding=UTF8&v=glance&n=5174

M80v2
Outlaw RR2150
Denon 3910