Solved Sapphire HD 6950 2GB, Cant find identical Card, Need help

Hello, this is my first post but im using this Graphics Card

Newegg.com - SAPPHIRE 100312-2SR Radeon HD 6950 2GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card with Eyefinity

I am going to set up CrossfireX put the card i linked above, seem to be gone, i found one on amazon, but im not sure if i should buy hardware there, or if its a good idea (i live in Norway)

So is it possible to use a different card with the one linked above for CrossfireX?

I did some more research, and i found out all i need is a "similar card" diffrents brand are fine

Although i use a Chieftec 750w Powersupply, and i know it's not the best but will it be good with 2x 6950 2GB? Btw, i use a Phenom II 1090T 4.0Ghz