jimi,
Lots of things to consider and learn. I'm also somewhat of a newbie on vocal recording but this data may help you.
It's often better to record in as dead a room as possible. This is how the big boys do it. After the vocal track is recorded they add effects like reverb, chorus, compression, etc.
If you want a very easy effect to apply to your recordings and will make your voice sound fuller, similar to alot of pop/rock tracks, simply record your lead voice twice and adjust the 2nd version just so it's slightly lower in volume than the 1st track. This is known as "doubling" and can be applied to pretty much any instrument to "fatten" it up. Primarily applied to vocals and guitar tracks though.
Go sing in a clothes closet, then sing in your downstairs basement and then your bathroom. Chances are the bigger rooms will give you impression your voice is carrying better, sounding much louder, etc. Go sing a church and compare the "natural reverb" there.
Reverb is usually suited to ballads. In most modern rock/pop songs very little reverb is used. Most reverb types will push your vocals further back in the mix. Since you're using a 4 track system you "may" want to invest in a cheap reverb effects unit and plug it in to your Tascam or whatever and record your vocals in your clothes closet and then go through the reverb into your recorder.
Compression requires alot of skill to use properly. In a nut shell what it does it "make the loud notes soft and make the soft notes loud". This in effect is supposed to "even the vocal out".
Some professional live singers use their "built in compressor" and push the mic further away when the sing louger or bring in it closer when they sing softer.
I just recently learned about draping thick blankets over/around the singer to record a better up front vocal. Works great!