Nubius is essentially right, micro ATX PSUs are basically just smaller, less powerful counterparts of ATX PSUs. They should both work the same with one another, but obviously an ATX board would benefit more from an ATX PSU.
The only PSUs which wouldn't work would be BTX, which use 24 pin motherboard connectors rather than 20 pin.
Intel C2D E6320 / AMD Athlon X2 3800+
Gigabyte 965P DS3 / DFI nF4 Ultra-D
2GB OCZ Gold PC2-6400 / 2GB OCZ Gold PC4000
eVGA 8800GTS 320MB / eVGA 6800GS 256MB
150GB Raptor / 74GB Raptor
2x500GB / 320GB
OCZ GameXStreme 850w / OCZ StealthXStream 600w