It's all really based on personal preference and, after a lot of shifting and experimentation, what you feel is comfortable for you, and not just in terms of where things are placed and angled, but how things sounds once you get it all in place.
When I first had my whole set together, I had it something like this:
https://smg.photobucket.com/albums/v153/MarkyMarc/Taye%20Drumset%202003/This gallery shows some of the varying set-ups I had with my drums as I tried to figure out what I liked. There's a bit of Phil Collins/Chester Thompson in there, as well as a bit of Carter Beauford (with the vertical left-side ride cymbal). I also tried out a tom-tom configuration that reflected the set-up that Drum Corps Tenors players use (having been a marching band geek, I was fascinated by drumline aesthetics and the set-up was fun to play on, almost a bit Bill Bruford-y).
Then the following year, I found more comfort in the standard, current Neil Peart set-up:
https://smg.photobucket.com/albums/v153/MarkyMarc/Taye%20Drumset%202004/With the toms positioned this way, I was able to cover some of Neil's current drum parts (as well as learning and transcribing "Limbo" on drums). That set-up seemed to be a natural evolution from the previous one, just shifting the toms a bit, raising the top two, moving my 14" rack tom to a floor-tom position, and adjusting the cymbals accordingly.
I pretty much kept that same set-up for the majority of 2004 and all of 2005. Then part-way through 2006, I tried out the classic 70's Peart set-up:
https://smg.photobucket.com/albums/v153/MarkyMarc/Taye%20Drumset%202006/Having a whole set of concert toms made this fun, and doing 8-tom runs is just fun to do, especially covering Rush songs! However, I eventually switched back to the Modern Peart set-up, but with some variations from the previous set-up, like using my two highest concert toms placed above the two highest tom-toms, allowing me to do 8-tom runs.
https://smg.photobucket.com/albums/v153/MarkyMarc/Taye%20Drumset%202007/Then in 2008, just as my father's music store was closing, I decided to set-up EVERYTHING I had at my disposal (and would eventually keep, at my dad's allowance), and so I birthed this "monster" that is based on Mike Portnoy's set-up, for the most part, with the tom-toms. I also made it so I could play an alternate kit on the left side (using the left-bass on my right-foot and using a snare and hi-hat on the far left). I also used this set-up for my Senior Recital a few months later.
https://smg.photobucket.com/albums/v153/MarkyMarc/Taye%20Drumset%202008/Like I said - setting up your drums is as unique as who you are. Set them up many different ways to discovering things about your playing as you learn how to play, and you may discovering unique ways of doing things.
Also - you guys must know one thing: I am not right-handed! I write with my left hand, yet I learned how to play drums right handed (I also play right-handed traditional grip). I can also play left handed a bit, and play open-handed, rather than the standard cross-handed. But my ambidextrous drumming is no where NEAR the skill that some great/famous drummers have, but I'm working on it by doing grooves/patterns right-handed, then switching it to left-handed every few measures/phrases. It helps limb independence, which I have a bit of, but still would like to work on a lot more.
-Marc.