When i was picking out my fantasy AM2 build, i liked, no, loved this mobo. 2x PCI-E x16, 6x SATA 3.0GB/s, 8GB max RAM supported.
I was also considering 2GB RAM (2x1GB), and found this RAM to be fitting. (Though, yes, on the expensive side.)
And hearing no bad words ever uttered about either MSI or OCZ, i think it's safe to say you'll be set with them. I have a bias towards MSI anyway. I had an Abit (yeah yeah, i know) board crap out on me, so i got an MSI K8N Neo (i think that's what it was...it's my mother's computer) and i haven't had a single problem, looks great, and from what i know OC's decently.