upgrading system to Gigabyte m/b - a few queries

I'm ditching my Abit KT7-Raid and 1.1GHz TB and thinking of going for a
Gigabyte GA-7N400-L1 and a 2500+ Athlon XP (333MHz Barton core) with PC2700
RAM as it's a reasonably priced combination. I just have a few questions
before I get the credit card out;

1. Does anyone have any comments, good or bad, about the GA-7N400-L1?

2. Is a 400MHz Athlon/PC3200 RAM combination worth the difference in price?

3. Is it worth buying PC3200 RAM anyway (with the 333MHz Athlon)? Could I
run it at 400MHz and would that be desirable ( I believe the FSB & RAM are
better to be in synch)? Would PC3200 RAM running at PC2700 speeds overclock
better?

4. Would 2 sticks have RAM have to be the same model/brand to be used Dual
Channel?

5. It's not just PC3200 RAM that can be used in Dual Channel mode is it?

6. Is RAM in Dual Channel mode noticeably quicker?


Many thanks for any thoughts on any of the above.

TIA
Iain