Hello i Am new to this forum i am somewhat familar about computers. anyway i've been thinking about getting a new computer but i still have my old computer which is still really nice. here are the specs

GENERAL SPECIFICATIONS
Processor Support
Intel CORE 2 Extreme
Intel Core 2 Duo
Pentium EE
Pentium D
Pentium
Chipset
NVIDIA nForce 790i Ultra SLI MCP and SPP
System Memory
Dual channel DDR3 800/1066/1333, and up to 2000 MHz SLI-Ready Memory.
Support for up to 8 GBs DDR3 memory.
USB 2.0 PORTS
Ten USB 2.0 Ports
Supports hot plug
Ten USB 2.0 ports (six rear panel ports, four onboard USB headers)
Supports wake-up from S1 and S3 mode
Supports USB 2.0 protocol up to 480 Mbps transmission rate
Onboard Serial ATA II
300MBps data transfer rate
Six Serial ATA II connectors
NVIDIA MediaShield RAID with support for RAID 0, RAID 1, RAID
0+1, RAID 5, and JBOD
Supports hot plug and NCQ (Native Command QUEUING)
Dual Onboard LAN
Two LAN interfaces built-in onboard
Supports 10/100/1000 Mb/s Ethernet
Onboard 1394
Supports hot plug
Two 1394a port with rate of transmission at 400 Mbps
Onboard Audio
Supports 8-channel audio
Supports S/PDIF output
Supports Jack-Sensing function
Alienware Area-51 Technical Reference
Triple PCI Express x16 Support
2 x16 PCI Express 2.0, 1 x16 PCI Express 1.0, Supports 4 GB/sec (8 GB/sec
concurrent) bandwidth
Power Management Features
Green Function
Supports ACPI (Advanced Configuration and Power Interface)
Supports S0 (normal), S1 (power on suspend), S3 (suspend to RAM), S4
(Suspend to disk - depends on OS), and S5 (soft - off)
Expansion Slots
Two PCI slots
One PCI Express x1 slots
Three PCI Express x16 Graphics slots; 2 electrical x16 for true dual-graphics
SLI configurations and 1 electrical x8 for additional PCI Express expansion

What i was hoping to figure out is, what is a fair price for the computer and i'm thinking about getting a laptop i was hoping someone can suggest a laptop that is good with gaming abilities.
Not sure what you're asking here...
Whats that MACHINE worth ? ? Or what should you spend on a new one...Its both all i want to know is whats a good price to sell the computer at and if someone can recommend a gaming laptop in which i can buy after i sold my old computer.It's a bit difficult to say, since you've only given the specifications for your motherboard.

Re: the laptop... I wouldn't know. Gaming is not something I think laptops should ever be purchased to do, since in a few years they will be regarded as barely able to handle office tasks. (much like Pentium 133 machines now)