I'd simply buy them from eBay.
![Smiley](https://bitcointalk.org/Smileys/default/smiley.gif)
Just take a look over there every day, you will find one.
I already have my 7950 Ice-Q since it's on the market which runs nice and is OC'ed. Doesn't overheat (only one time when I took it way too far with overclocking and mining).
Using it for scrypt and sha256 sometimes. Getting good hash rates.
Also used it for mining Bitcoin directly when I got it.
![Wink](https://bitcointalk.org/Smileys/default/wink.gif)
(Sometimes it goes crazy for a few hours and has a random +300kh/s on scrypt for example, which it really does - no visual error, it really seems to have random "boosts". (Checked it every time if the hashing speed was recognized properly)