1. 16 bit po a ito or 24 bit?
24 bit. Just keep it internal to Sonar. This is better for processing headroom, but if you're concerned about large file sizes, you can go 16 bit without much worry. Just save files as 16 bit wav, but keep Sonar in 32 or 64 bit if your pc can handle it.
2. kailangan pa po ba ng ASIO driver for low latency?
Asio has proven to be very reliable for low latency recording for me, although nothing is stopping you from using WDM if you prefer it. As long as you can record with low latencies, you can use either. I just prefer asio because vst fx seem to behave better with it.
3. compatible po ba ito sa cakewalk sonar?.. ito na po kasi yung medyo alam ko na software (but i think may included na software dito ung pro-tools.)
Stick with what you know... the rest will follow later. Sonar is more than capable for music production... I should know. As long as you generate wav files with logical start times, you can fly those into any PT setup.
4. ok po ba ung behringer C-1 condenser mic,, sa ngayon po kasi ang gamit is badger condenser mic, na-purchase namin sa lazer music store...
It's ok, but not without it's faults. The secret is to learn how to live with them. As time goes by and if you save enough, you can always increase your mic cabinet as the need arises. For now, capitalize on the strengths of the C-1 and try to roll off the highs if it sounds too bright.