Well. It certainly is a big topic. Your first concern would be budget. A pressurized CO2 system for your tank would cost upwards of 150-350 dollars, depending on how high tech you want it to be.
To tell you the truth, theres simply WAAAY too much on the topic to describe a setup in a few sentences.
Oh, and one thing I forgot to add. Don't even think about a yeast based setup for your size tank. They're designed for mainly smaller tanks <20 gallons.
legendaryfrog already posted a god link. but i though i would chime in and say if you have the money go for a good regulator because a good one will literally last you a life time probably.
Oh, and one thing I forgot to add. Don't even think about a yeast based setup for your size tank. They're designed for mainly smaller tanks <20 gallons.