Going crossfire

[Dirkscooby]

Hi wonder if someone could help me? Ive got a x1900xtx and I want to go xfire. I got a few qestions
1.I have a sapphire model..do I just need to buy a master card? Does it matter what brand?
2. What motherboard do you recommend?
3. I have a soundcard,.will I still have room for the card with 2 graphic cards on board?
4. I got a 550 watt antec truepower will that be sufficient?

 

[Dirkscooby]

Its the neohe powersupply I have.

 

[Dirkscooby]

What brand mastercard should I go for?

 

[Dirkscooby]

Thanks guys really apreciate the advice...just one more question
Anyone with crossfire? are you glad you went crossfire..is it worth it?

 

[Dirkscooby]

Thanks guys.
I mainly play bf2,css..all the big fps games. Just be nice to run games at 1920 x 1200 with high aa and af and everything completly maxed. Im not far off that now with my specs but a few games I get the odd drop here and there, and there was oblivion.