Processor upgrade on a A7N8X-LA Mobo

What are my choices for upgrading my Processor? I have an older board, an A7N8X-LA, with an Nvdia Nforce2 MCP-T Chipset.

Here's the specs on my Mobo and CPU:




Motherboard Properties---------------
Motherboard ID Exp$1003.014$09/17/2003-16:36:51$nFORCE
Motherboard Name Asus A7N8X-LA

Front Side Bus Properties
Bus Type DEC Alpha EV6
Bus Width 64-bit
Real Clock 166 MHz (DDR)
Effective Clock 333 MHz
Bandwidth 2661 MB/s

Memory Bus Properties
Bus Type Dual DDR SDRAM
Bus Width 64-bit
Real Clock 166 MHz (DDR)
Effective Clock 333 MHz
Bandwidth 5322 MB/s

Chipset Bus Properties
Bus Type HyperTransport v1.0
Bus Width 8-bit

Motherboard Physical Info
CPU Sockets/Slots 1
Expansion Slots 3 PCI, 1 AGP
RAM Slots 2 DIMM
Integrated Devices Audio, Video, LAN, IEEE-1394
Form Factor Micro ATX
Motherboard Size 240 mm x 240 mm
Motherboard Chipset nForce2-IGP
Extra Features CPU Overheating Protection

Motherboard Manufacturer
Company Name ASUSTeK Computer Inc.
Product Information http://www.asus.com/products/mb/mbindex.htm
BIOS Download http://www.asus.com/support/download/download.aspx

CPU--------------------

CPU Properties
CPU Type AMD Athlon XP-A, 2079 MHz (6.25 x 333) 2800+
CPU Alias Barton
CPU Stepping A2
L1 Code Cache 64 KB
L1 Data Cache 64 KB
L2 Cache 512 KB (On-Die, Full-Speed)

CPU Physical Info
Package Type 453 Pin PGA
Package Size 4.95 cm x 4.95 cm
Transistors 54.3 million
Process Technology 6Mi, 0.13 um, CMOS, Cu
Die Size 101 mm2
Core Voltage 1.65 V
I/O Voltage 1.6 V
Typical Power 53.7 - 60.4 W (depending on clock speed)
Maximum Power 68.3 - 76.8 W (depending on clock speed)

CPU Manufacturer
Company Name Advanced Micro Devices, Inc.
Product Information http://www.amd.com/us-en/Processors/ProductInformation/0,,30_118,00.html

CPU Utilization
CPU #1 0 %