WELCOME TO AA!!!
Please do not cycle with live animals.
A 10G is doable, but as mel said, the smaller the tank, to less room for error. Basically, if your water parameters slip, bad things happen very quickly. Is there any chance you could gat a 20-30G tank? If you are new and have problems, I would hate to see you get upset and quit the addiction....err hobby.
I also agree, the initial expense is kind of high, once you are set up there is not expense after that.
Read over loyalrogue's link, there are some great pieces of equipment. This will give you an idea of what you need. Try not to skimp on cheap equipment, it will end up costing you more, in the long run.
Originally Posted by BoarderX47
What is live rock?
Live rock is, in SW
terms, rock that has the nitrifying bacteria that helps convert ammonia to nitrAtes. The critters that grow on it are just a bonus.
We have a great page of Articles
to help you understand. I would read How to cycle your tank with out the use of fish and How ammonia is converted to nitrate, to give you an idea of how the fishless cycle works.
Read those and ask away.