Just remember, for all the treating of the room, proper mic setup, quality equipment, etc. there is NO substitute for a good performance. In fact, I think the most important part of any quality vocal recording is a strong performance. A strong performance that isn't captured as well as it could have been will always sound better than a crappy performance captured in the perfect studio. For this reason alone, I don't mount my mic on a stand. I hold it in my hands when I'm recording my vocals. Then I close my eyes and try to get into the song, haha. I find that for me this works pretty well.
<-- a sample of my lastest recording where I used this exact technique. The mic was a Behringer B2 condensor, and the pre was my little Line6 toneport UX-2.
That being said, there are somethings that you should keep in mind. Generally you will want to compress your vocal track, especially if it has any dynamic variation. There's a great free compressor I used for my vocals, the "blockfish" compressor. It's a vst, and it should work in just about any DAW. I typically load up the "up-front" vocals preset and do a minimal amount of tweaking.
You might also find you need to apply some EQ. In your FX chain, EQ should go before compression. Every voice is different, but typically you want to get rid of anything from about 80hz and below, and put a high-shelf on it starting at around 6k. If your vocals lack beef, boost around 350 - 500, although be careful because you can very easily make your vocals sound boxy. If your vocals lack overall strength, you can boost at 1.5k. In fact, I purposefully avoid boosting any instrument in my mix at the 1.5k range, just so I can save it for my vocals.
After that, any other effects are purely preferential based on what you want. I like a touch of large-hall reverb because I try to go for that "huge" sound on all my recordings. Depending on the genre, I might also run my vocals through a doubler. if you don't have a doubler plugin, you can essentially get the same effect by following the steps that guitar zero described.
Hope this helps!