Can this case and power supply support the Radeon 6870?

[GaRRm3R]

So, I want to build my own computer and have no idea what to do about my power supply and case. I want to install the Radeon 6870:
http://www.tigerdirect.com/applications/searchtools/item-details.asp?EdpNo=869185&SRCCODE=LINKSHARE&cm_mmc_o=-ddCjC1bELltzywCjC-d2CjCdwwp&AffiliateID=jXot6eVeYJg-UX_2Hw8m5vG7V0IXQiau2Q
And need to know if this case:
http://www.googolshop.com/Elite-311-Black-w47OrangeTrim_p_154156.html
and this power supply:
http://www.googolshop.com/550W-23v-ATX-Power-Supply_p_144806.html
are enough to support it.

Also, I want to get the Phenom II X4 955 Processor, so if this configuration could support it too then that'd be good.

*If this case (w/ P.S.):
http://www.googolshop.com/CMP-350-ATXM-ATX-500W-PSU_p_138428.html
Could support it all then I'd just get it instead of the two seperate purchases.

Thanks!

 

[GaRRm3R]

If anyone has any other suggestions of combinations could you please tell me as well? I chose the above selections because they accept PayPal and ship to Canada.

 

[lakshitharxx]

Power Supply
http://www.newegg.ca/Product/Product.aspx?Item=N82E16817139027