PSU sizing

[Spacey]

Need to order a new PSU and wondered what your thoughts would be in terms of sizing appropriately for this lot:

Q9550 CPU
mobo
2x 4GB DDR3 sticks
1x SSD
7x sata HDDs
PCIe sata controller
GTX560ti
Another PCIe graphics card (yet to be purchased - purely to drive 3rd monitor so won't be massively hungry)
Xonar sound card
BDROM drive

I doubt my current Corsair TX650 (about 4 years old) will cope? It's very short on connections already...

 

[Orcvader]

Stick with the TX650, it's powerful enough. And you only need a super cheap GPU to run the third monitor, so it will not be using much power.