A 60" or 62" bow would do ya fine. I'd probably stick in the 50-55 pound range. It might be a bit stiff in the beginning, but as long as you can shoot with good form, it shouldn't be too tough to work into it. If it was just deer, I'd have said 45-50, but when you tossed elk, lopes and bear into the mix...
The X200 is a good entry level bow, but it's not real high up on the performance scale. I'd suggest scoping out the classifieds here and at tradgang.com and try to find a second hand custom. You can usually pick up a good'un for around $300. Maybe a tad more.
If you want to stick with carbon, I'd suggest Gold Tip Traditional Hunters or Carbon Express Heritage.