Yeah Bradster was like you trying to do it on a low budget and will upgrade. 5 wireless keyboard I bought where 19$ or so a piece on newegg. The rigs are:

MOTHERBOARD: ASUS M2N4-SLI Socket AM2 Motherboard
4 DDR2 / 2 PCIe X16 / 2 PCI / SATA2 / RAID

PROCESSOR: AMD Athlon 64 X2 4600+ AM2 DUAL CORE CPU
2X512K Cache / 2000FSB - 2X 2.4GHz per core

VIDEO: NO ONBOARD VIDEO
Supports 1 or 2 PCI Express Video Cards - SLI Ready

AUDIO: Realtek ALC850 6-Channel AC'97 CODEC

LAN: Built-in Gigabit MAC with external Attansic PHY
(Cable / DSL / Network Ready)
CASE: Black Neon Light & Side Window Case
with Front USB Ports & 580W Power Supply
I/O PORTS: 4 USB Rear / PS2 / 1 Serial / 1 LPT / 1 VGA / 1 RJ45
DRIVERS: Motherboard Manual, Chipset, Video, Audio & Lan Drivers
That is 3 of them my old pc is an old p4 and me new main is:

Processor:
AMD Athlon 64 x2 5600+ Dual Core Socket AM2 CPU
CPU Fan: AMD 64 Heavy Duty Cooling Fan With Heat Sink
Motherboard: Asus M2N4- SLI nForce 4 (up to 5000+ CPU support)
Memory: not included (supports up to 4GB DDR2 533/677/800 memory)
PCI Express: Dual 16x PCI Express slots
IDE/SATS: Supports four SATA/SATA2 and two IDE drives
PCI slots: 3 PCI and tow PCI Express 1 slots
USB: 6 USB 2.0 ports ( 4 back and 2 front ports)
Sound: AC 97 6 channel 5.1 Full duplex sound (onboard)
Network: 10/100 RJ45 onboard network (Ethernet, cable or DSL)
Ports: 1 serial, 1 parallel, 1 microphone jack
Case: Black Neon Mid Tower 400w power supply (front USB)
Power Supply: 400W ATX power supply
Case Bays: 4 external 5.25", 1 external 3.5" , 6 internal 3.5" bays
Case Fan: 80mm case fan with neon light

the 4 new rigs will have 2gigs of ram and 8600gt boards Just short the 4 17 monitors now. Going to run my main on my 37" Really hope the wireless route works for about a month or so. Well thanks for all the help and hope to have a blog up soon lol.