No prob. Tires end up being just barely smaller than stock overall diameter,so it doesn't throw your speed off by much,maybe like 3-5mph,but the size of the tire definetly plays a huge role in the way your truck sits. 215/45/17 is also a good compromise.
Check out the difference of the same drop with 50 and 40 profile tires:
205/50/17 - Too much sidewall,truck handled like crap,sat a little higher
205/40/17 - Sits a little lower (I was able to lower the front end more because the tires didn't rub anymore).
So there ya go for reference. I personally quite liked the look of the 40s. Seeing how you sit now on the 14s with the small tires,I think you'll end up going with the 40s.