any tips for a new gaming computer

Im geting a new computer soon and i dont know much about anything about pc gaming like do i need to join some one to play games on mutli player or do i ,need mircosoft gold to play mutli player or steam or no one and any one know some good games to play besides tf2.fallout3,call of duty world at war,world of war,wow

You don't need an Xbox Live subscription to play games on PC. Most games just have their own independent online servers, and it costs nothing for you to play. A list of servers just pops up and you choose one.

You should have put a price cap, so we could figure out the best set up for you.

For about $700: This will be a good starting point if you just want to play online, but are not concerned with graphics and the need to upgrade in a couple of years.

Case (AZZA Fantom 900 Gaming Tower Case Black)Power Supply (700 Watt -- Power Supply SLI Ready)Processor (AMD Athlon™ X2 7850+ Black Edition Dual-Core CPU w/ HyperTransport Technology)Processor Cooling (AVC Silent AMD CPU Fan and Heatsink Quiet & Overclocking Proof)Motherboard (Asus M3A78-CM AMD 780V/SB700 Chipset w/Integrated ATI video, 8-channels, Gb LAN, S-ATA Raid, USB 2.0, Single PCI-E MB)Memory (2 GB [1 GB X2] DDR2-800 PC6400 Memory Module Corsair-Value or Major Brand)Video Card (NVIDIA GeForce 9600GT 512MB w/DVI + TV Out Video)Video Card Brand (=== High Performance === eVGA Brand Video Card Powered by NVIDIA)Hard Drive (320 GB HARD DRIVE [Serial-ATA-II, 3Gb, 7200 RPM, 16M Cache])CD-RW/DVD-RW Drive (LG 22X Dual Format/Double Layer DVD±R/±RW + CD-R/RW Drive Black)Sound Card (3D Premium Surround Sound Onboard)Network Card (Intel Pro 10/100/1000 Network Card)Flash Media Reader/Writer (12-In-1 Internal Flash Media Card Reader/Writer Black)Operating System (Microsoft Windows Vista Home Basic ) 32-Bit)Headset ([Gaming Gear] Logitech Extreme PC Gaming Headset)

For $1,200: If you want performance and a good internet connect speed.

Case (Thermaltake Armor+ MX Middle Tower Gaming Case Black)Power Supply (800 Watt -- Power Supply Quad SLI Ready)Processor ([== Triple Core ==] AMD Phenom™ II X3 720 Triple-Core CPU w/ HyperTransport Technology AM3 & AM2+ support)Processor Cooling (Sunbeam Core-Contact Freezer CPU Cooling Fan System Fan Controller Included)Motherboard (Asus M3A78-CM AMD 780V/SB700 Chipset w/Integrated ATI video, 8-channels, Gb LAN, S-ATA Raid, USB 2.0, Single PCI-E MB)Memory (4 GB [2 GB X2] DDR2-800 PC6400 Memory Module Corsair-Value or Major Brand)Video Card (NVIDIA GeForce 9800GT 1GB w/DVI + TV Out Video)Video Card Brand (Major Brand Powered by NVIDIA)Hard Drive (500 GB HARD DRIVE [Serial-ATA-II, 3Gb, 7200 RPM, 16M Cache])CD-RW/DVD-RW Drive ([Lightscribe Technology] Sony 20X Dual Format/Double Layer DVD±R/±RW + CD-R/RW Drive Black)Sound Card (Creative Lab Sound Blaster X-Fi Xtreme Audio)Network Card (Killer K1 - Online Gaming Accelerator - w/ 333Mhz Network Processing Unit + Lag Reduction Technology)Flash Media Reader/Writer (12-In-1 Internal Flash Media Card Reader/Writer Black)Operating System (Microsoft Windows Vista Home Premium) 32-Bit)Headset ([Gaming Gear] Logitech Precision PC Gaming Headset)

External Wireless Network Adapter (Zonet ZEW2545 802.11n 130Mbps Wireless USB Adapter)

NOTE: I did not include: keyboard, mouse, speakers, and moniter. These items are more personal, and I can't really suggest any of it.