Buying $700 build right now, PSU double check

[my92agsr]

I'm getting ready to purchase my build from newegg. I've done tons of research on power supplies, and just wanted to make sure I'm not missing anything here.

I'm purchasing a 530W Continious power supply made by Rosewill, link here:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182199

My system is:
AMD Phenom II X4 955 Black Edition Deneb 3.2GHz 4 x 512KB L2 Cache 6MB L3 Cache Socket AM3 125W Quad-Core Processor HDZ955FBGMBOX
http://www.newegg.com/Product/Prod [...] -_-Product

CORSAIR XMS3 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMX4GX3M2A1600C9
http://www.newegg.com/Product/Prod [...] 6820145260

MSI 870-G45 AM3 AMD 870 ATX AMD Motherboard
http://www.newegg.com/Product/Prod [...] 6813130290

Rosewill CHALLENGER Black Gaming ATX Mid Tower Computer Case
http://www.newegg.com/Product/Prod [...] 6811147153

And XFX HD-585X-ZAFC Radeon HD 5850 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card w/ Eyefinity
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150477&cm_re=xfx_5850-_-14-150-477-_-Product

Getting 1TB Samsung 7200RPM Sata HD
Standard DVD-RW drive

Multiple PSU calculators suggest 505 watts, assuming this is a regular motherboard, not highend. So I should be good on my PSU, right?

Thanks everybody in advance!

 

[Mr Pizza]

Rosewill PSU, a no no

go with G.SKill ram

I would go with this PSU,
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371020&cm_re=550w-_-17-371-020-_-Product
or
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151092&cm_re=550w-_-17-151-092-_-Product

 

[davcon]

I wouldn't buy a Rosewill PSU either here's some cheap better quality units.
http://www.newegg.com/Product/Productcompare.aspx?Submit=ENE&N=100007657%2050001550&IsNodeId=1&bop=And&CompareItemList=58%7C17-341-022%5E17-341-022-S01%2C17-341-017%5E17-341-017-TS%2C17-341-018%5E17-341-018-TS
Ram - faster CAS7
http://www.newegg.com/Product/Productcompare.aspx?Submit=ENE&N=100007611%20600006127%20600006066%20600006156&IsNodeId=1&page=2&bop=And&CompareItemList=147%7C20-145-285%5E20-145-285-TS%2C20-226-103%5E20-226-103-TS%2C20-231-303%5E20-231-303-TS
Plus i would seriously consider a GTX 460 gpu the Asus unit is very good
http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100007709%20600030348%20600007323%20600062521%20600007779&IsNodeId=1&name=1GB

http://benchmarkreviews.com/index.php?option=com_content&task=view&id=577&Itemid=72