[Solved] Upgrading; Gigabit GA-MA770T-UD3P compatibility with Phenom II X2 CPU?

Hello,

I'm upgrading my computer's CPU and motherboard, which also requires a RAM upgrade (from DDR2 to DDR3). I've preliminarily settled on this set:

• Motherboard: GIGABYTE GA-MA770T-UD3P AM3 AMD 770 ATX AMD ($85 CAN)
• CPU: AMD Phenom II X2 545 Callisto 3.0GHz Socket AM3 80W Dual-Core Processor Model HDX545WFGIBOX ($97)
• Memory: CORSAIR XMS3 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) ($93)

I have a few questions I couldn't find answers for:

• The motherboard is compatible with the Phenom II X2 socket type (AM3), but only lists X3 and X4 as compatible CPU types. Will the motherboard be compatible with the X2 processor above?
• Are there any speed bottlenecks between these components that I missed?
• Will these support both 32-bit Windows XP (ignoring the 3GB memory limit) and 64-bit Windows 7? (The motherboard and CPU are both 64-bit compatible.)

Thank you,
Jesse

Thank you.