Your digging way too deep. No AM3 board that I ever heard of has ANY of those features "locked".
Why don't you start by telling us what hardware you plan to use (cpu, memory, video), what your main uses are, and what your budget is and we can find you a good board.
Do you really want a Micro-atx? Do you need integrated graphics? I really would not recommend a 740G unless your on a really tight budget.