Motherboard recommendation

Hye, I recently bought a new CPU (Phenom II 945) but apparently my motherboard (Asus M2N68-AM Plus) does not support 125W processor. So, it would be very helpful if you guys can recommend a motherboard for me to use.

I am looking for something decent and cheap.
I don't play games much, only fifa
I do not overclock my system
I am not going to use SLI/crossfire

Also, I need a motherboard that fit my casing (not really big) so size is also important.

My current system:

Motherboard:

CPU Type DualCore AMD Phenom II X2 Black Edition 550, 3072 MHz (15.5 x 198)
Motherboard Name Asus M2N68-AM Plus (2 PCI, 1 PCI-E x1, 1 PCI-E x16, 2 DDR2 DIMM, Audio, Video, Gigabit LAN)
Motherboard Chipset nVIDIA nForce 7025-630a, AMD K10
System Memory 4096 MB (DDR2-800 DDR2 SDRAM)
DIMM1: Corsair XMS2 CM2X2048-6400C5 2 GB DDR2-800 DDR2 SDRAM (5-5-5-18 @ 400 MHz) (4-4-4-13 @ 270 MHz)
DIMM2: Corsair XMS2 CM2X2048-6400C5 2 GB DDR2-800 DDR2 SDRAM (5-5-5-18 @ 400 MHz) (4-4-4-13 @ 270 MHz)
BIOS Type AMI (08/23/10)
Communication Port Communications Port (COM1)
Communication Port Printer Port (LPT1)

Display:
Video Adapter ATI Radeon HD 4800 Series (1024 MB)
Video Adapter ATI Radeon HD 4800 Series (1024 MB)
3D Accelerator ATI Radeon HD 4870 (RV770)
Monitor Acer V193W [19" LCD] (LC1080344212)

Multimedia:
Audio Adapter ATI Radeon HDMI @ ATI RV770/790 - High Definition Audio Controller
Audio Adapter nVIDIA nForce 7025-630a (MCP68SE) - High Definition Audio Controller