Ideas on Mobo please

[ursen]

OK my computer was custom built in 2009, and I recently upgraded the video card, but it did not correct some reboot problems I have been having. Yes I even upgraded the OS to Windows 7. So sometime in May or June I will swap out the Motherboard and CPU. The current CPU is a first gen I7, and I would like to stay with Intel. I need to start looking at ideas and reasons for those ideas. Looking at no more than $400.00. No I can't afford a whole new machine. Current specs.
Operating System
Windows 7 Home Premium 64-bit SP1
CPU
Intel Core i7 920 @ 2.67GHz 33 °C
Bloomfield 45nm Technology
RAM
6.00GB Triple-Channel DDR3 @ 534MHz (8-8-8-20)
Motherboard
ASUSTeK Computer INC. P6T SE (LGA1366) 28 °C
Graphics
ASUS VH222H (1440x900@60Hz)
2047MB NVIDIA GeForce GTX 650 Ti (ZOTAC International) 22 °C
Storage
698GB Western Digital WDC WD7500AADS-32L5B1 ATA Device (SATA) 27 °C
74GB Western Digital WDC WD80 0JD-55JRC0 USB Device (USB)
37GB Generic USB Disk USB Device (USB)
969KB Garmin Vivo Smart Flash USB Device (USB)
Optical Drives
OPTIARC DVD-ROM DDU1678A ATA Device
TSSTcorp CDDVDW SH-S223B ATA Device
Audio
Realtek High Definition Audio

I would like to retain the use of at least one PCI slot, two would be better. On board sound is a given. I would like to keep all the rest of the current components. Ideas for upgrades if you please.

 

[CowRocket]

What do you use the PC for?
Mostly gaming, other things(like CAD, Video processing), or just normal stuff?

 

[Wolfeman]

www.pcpartpicker.com

There is no better site on the internet for computer building or upgrading. Compatibility filter makes sure everything works together and the community is very helpful.

 

[ursen]

Gaming and general stuffs