I'm looking to upgrade my AMD motherboard.

Might help if you list your current Mobo, then we can suggest something,
I could suggest an AsRock m3a770de, but you may already have better  
as for potentially unlocking cores, make sure your new board has at least an sb710 on the chipset, its nogo otherwise.
Moto

Wait a little for the new AM3+ motherboards, those will support the new Bulldozer CPUs. Within a few weeks IMO. Some producers already claim AM3+ support on their current mobos they're selling but those are high-endish.

My current motherboard is GIGABYTE GA-770TA-UD3 AM3 AMD 770 SATA 6Gb/s USB 3.0 ATX AMD. It only has one PCIe slot and I would like to have at least 2 incase I ever want to SLI. Also I would like Core Unlocker.

Actually what I am doing is pretty much building another computer just using the CPU I have already. This is what I'm thinking about doing.

My case that I have already Cooler Master Haf 932
CPU that I already have AMD Phenom X4 965 3.4ghz Deneb Back Edition
MOBO undecided
Ram possible 8gb Cosair Dominator DDR3 1600
Video card that I already have EVGA Geforce 560 Ti Superclocked Edition
Hard drives possibly 1 Western Digital VelociRaptor 150gb boot drive, and 1 Seagate Barracuda 1tb storage drive.
Power Supply CORSAIR HX Series 850w Modular 80plus silver certified.
Haven't decided on the optical drives either yet. Probably one Blue Ray reader/DVD burner and maybe one more.

This will be the 4th computer I've built for myself. I have never overclocked or anything and I want to really try it with this next one.

AMD and SLI don't really go together too well. Here are a couple from newegg:

http://www.newegg.com/Product/Productcompare.aspx?Submi...|13-131-636^13-131-636-TS%2C13-131-636R^13-131-636-TS

Also, Which cores are you going to unlock on your 965? all core are already unlocked!  

Also the M4N75TD but those old Nvidia chipsets are inferior to the AMD ones.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

But you don't need SLI yet, your current board is fine. When you'll SLI then buy a new mobo, Nvidia is reassessing it's policy of crippling the SLI on AMD mobos. Basically the Nvidia drivers have a DRM that if detects an AMD mobo disables the SLI. There's a hack though, I don't know if it works on all the mobos.

http://www.xdevs.com/e107_plugins/content/content.php?c...

I agree that you should probably wait for bulldozer in June. Upgrading to current motherboards doesn't make much sense as there won't be an upgrade path. Everything I've heard about AM3+ says that it will require a new motherboard. There are rumors that Asus will provide updates via BIOS, but I def wouldn't count on that.

If you really can't wait, I would then suggest a 890FX chipset for multi GPU config. Really sli on AMD motherboards is not gonna be the best experience, plus it won't be so much of an update since they won't have the latest features like SATA 3 and USB 3.0.

Ok so I am thinking about buying this motherboard for my upgrade:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

What do you guys think?

Looks very nice.

+1, get me two while your there  
Moto