Hi there people im new at this and need help. im trying to build a gaming computer but i'm a little nervous when looking for parts because i'm afraid not everything will be compatible. I will be playing mostly RPGS and RTS games. My budget is around $850-900 with a copy of windows 7. I will be keeping my old mouse, keyboard, speakers and monitor. My max resolution is 1440 by 900. I wont be overclocking and i plan on running CrossFire somewhere down the line. As of now im planing on ordering the parts within the next 2-3 weeks. If anyone can help me out i would greatly appreciate it. Thank You.
NZXT Guardian Black SECC Steel Chassis ATX Mid Tower Case 921RB-BL
http://www.amazon.com/gp/product/B004351H9G/ref=ox_sc_act_title_9?ie=UTF8&psc=1&smid=ATVPDKIKX0DER
Corsair CX Series 500 Watt ATX/EPS Modular 80 PLUS Bronze ATX12V/EPS12V 456 Power Supply CX500M
http://www.amazon.com/gp/product/B00ALK3HF4/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=ATVPDKIKX0DER
Gigabyte LGA 1155 DDR3 1600 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard with UEFI BIOS GA-Z77-HD3
http://www.amazon.com/gp/product/B00APZXYGM/ref=ox_sc_act_title_3?ie=UTF8&psc=1&smid=ATVPDKIKX0DER
Intel Core i5-3570 Quad-Core Processor 3.4 GHz 6 MB Cache LGA 1155 - BX80637I53570 http://www.amazon.com/gp/product/B0087EVHTE/ref=ox_sc_act_title_6?ie=UTF8&psc=1&smid=ATVPDKIKX0DER
Corsair Vengeance Blue 8 GB (2X4 GB) PC3-12800 1600mHz DDR3 240-Pin SDRAM Dual Channel Memory Kit
CMZ8GX3M2A1600C9B
http://www.amazon.com/gp/product/B004QBUL1C/ref=ox_sc_act_title_5?ie=UTF8&psc=1&smid=ATVPDKIKX0DER
Gigabyte AMD Radeon HD 7850 2 GB GDDR5 DVI-I/HDMI/2x mini-Displayport PCI-Express 3.0 Graphic Card GV-R785OC-2GD http://www.amazon.com/gp/product/B007PJTNYS/ref=ox_sc_act_title_2?ie=UTF8&psc=1&smid=ATVPDKIKX0DER
Western Digital Caviar Blue 500 GB SATA III 7200 RPM 16 MB Cache Bulk/OEM Desktop Hard Drive - WD5000AAKX
http://www.amazon.com/gp/product/B00461G3MS/ref=ox_sc_act_title_7?ie=UTF8&psc=1&smid=A1COA7PWTAABOP
Asus 24xDVD-RW Serial ATA Internal OEM Drive DRW-24B1ST (Black)
http://www.amazon.com/gp/product/B0033Z2BAQ/ref=ox_sc_act_title_4?ie=UTF8&psc=1&smid=A1B16S9HEII11V
NZXT Guardian Black SECC Steel Chassis ATX Mid Tower Case 921RB-BL
http://www.amazon.com/gp/product/B004351H9G/ref=ox_sc_act_title_9?ie=UTF8&psc=1&smid=ATVPDKIKX0DER
Corsair CX Series 500 Watt ATX/EPS Modular 80 PLUS Bronze ATX12V/EPS12V 456 Power Supply CX500M
http://www.amazon.com/gp/product/B00ALK3HF4/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=ATVPDKIKX0DER
Gigabyte LGA 1155 DDR3 1600 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard with UEFI BIOS GA-Z77-HD3
http://www.amazon.com/gp/product/B00APZXYGM/ref=ox_sc_act_title_3?ie=UTF8&psc=1&smid=ATVPDKIKX0DER
Intel Core i5-3570 Quad-Core Processor 3.4 GHz 6 MB Cache LGA 1155 - BX80637I53570 http://www.amazon.com/gp/product/B0087EVHTE/ref=ox_sc_act_title_6?ie=UTF8&psc=1&smid=ATVPDKIKX0DER
Corsair Vengeance Blue 8 GB (2X4 GB) PC3-12800 1600mHz DDR3 240-Pin SDRAM Dual Channel Memory Kit
CMZ8GX3M2A1600C9B
http://www.amazon.com/gp/product/B004QBUL1C/ref=ox_sc_act_title_5?ie=UTF8&psc=1&smid=ATVPDKIKX0DER
Gigabyte AMD Radeon HD 7850 2 GB GDDR5 DVI-I/HDMI/2x mini-Displayport PCI-Express 3.0 Graphic Card GV-R785OC-2GD http://www.amazon.com/gp/product/B007PJTNYS/ref=ox_sc_act_title_2?ie=UTF8&psc=1&smid=ATVPDKIKX0DER
Western Digital Caviar Blue 500 GB SATA III 7200 RPM 16 MB Cache Bulk/OEM Desktop Hard Drive - WD5000AAKX
http://www.amazon.com/gp/product/B00461G3MS/ref=ox_sc_act_title_7?ie=UTF8&psc=1&smid=A1COA7PWTAABOP
Asus 24xDVD-RW Serial ATA Internal OEM Drive DRW-24B1ST (Black)
http://www.amazon.com/gp/product/B0033Z2BAQ/ref=ox_sc_act_title_4?ie=UTF8&psc=1&smid=A1B16S9HEII11V