Price adjustment on my build?

Hello there,
Recently, I was recommended the following build and I kinda need to bring the price down because of shipping, maybe to the $800 point or something? Is there any better replacements for any parts I listed below that isn't more expensive? Please help me!

CPU: AMD Phenom II X4 955 Black Edition Deneb 3.2GHz 4 x 512KB L2 Cache 6MB L3 Cache Socket AM3 125W Quad-Core Processor ($162)


GPU: XFX HD-577X-ZNFC Radeon HD 5770 1GB 128-bit DDR5 PCI Express 2.0 x16 HDCP Ready CrossFireX Support Video Card ($170)
http://www.newegg.ca/Product/Product.aspx?Item=N82E1681...

Motherboard: GIGABYTE GA-790XTA-UD4 AM3 AMD 790X SATA 6Gb/s USB 3.0 ATX AMD Motherboard ($160)
http://www.newegg.ca/Product/Product.aspx?Item=N82E1681...

RAM: G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-4GBRL ($106)
http://www.newegg.ca/Product/Product.aspx?Item=N82E1682...

HDD: SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive ($80)
http://www.newegg.ca/Product/Product.aspx?Item=N82E1682...

Case: COOLER MASTER Centurion 5 CAC-T05-UW Black Aluminum Bezel , SECC Chassis ATX Mid Tower Computer Case ($50)
http://www.newegg.ca/Product/Product.aspx?Item=N82E1681...

Power Supply: Antec EarthWatts EA650 650W Continuous Power ATX12V Ver.2.2 / EPS12V version 2.91 SLI Certified CrossFire Ready 80 PLUS Certified Active PFC "compatible with Core i7/Core i5" Power Supply ($100)
http://www.newegg.ca/Product/Product.aspx?Item=N82E1681...

Optical Drive: ASUS Black 24X DVD+R 8X DVD+RW 12X DVD+R DL 24X DVD-R 6X DVD-RW 12X DVD-RAM 16X DVD-ROM 48X CD-R 32X CD-RW 48X CD-ROM 2MB Cache SATA 24X DVD Burner - Bulk - OEM ($22)
http://www.newegg.ca/Product/Product.aspx?Item=N82E1682...

Credits to MadAdmiral for this wonderful build. The total cost of this build is $848. Maybe trim it down to $800? For your information I live in Canada.

Thank you!