Originally Posted by
Tusk
Like you, I am 5'-10" +/- with a ~30" inseam. I have one 58 cm. two 56 cm, and one 54 cm. All are relatively comfortable to ride with the two 56es best. I started with the 58 cm (freebee from my brother) and then went smaller after riding for a few years. As others have stated above, your fit will change as you get miles under you.
I would buy an inexpensive local used bike in the size you think you want, ride it, tweek it, learn from it, and after you are comfortable, in better shape with different flexibility than now, spend the $3-4k for what you want.
Yeah, I hear you but buying a cheaper bike (which will likely still be $1k or more) is not my cup of tea. All of this is making me thing that a pre-bike fitting is worth is so I can set myself as best as I can from the start.