SF, If you don't mind me asking, what'd it set you back? Have thought about it for my 10mm rounds...could play more with it then 
Thanks SF. Hadn't done that much looking but have been curious. And congrats on your new equip!If all you are wanting to load is 10mm you can get set up fairly cheap. As long as you want to use a single stage press. Progressive presses are more expensive but allows you to load a lot more ammo. For Example my Dillon will re-load 4-500 rph. A single stage nowhere near so much.
Also, you wont need a 50bmg press for 10mm. You can get a lee single stage press for around $40. Lee dies aren't very expensive and you can find used ones on E-bay for even less. But to answer your original question the 50bmg press was just under $200.
For someone wanting to get started there are several out there including one called the rock chucker. To my knowledge it comes with everything that you will need to get started powder measure etc. minus the dies. But don't quote me on that as I don't have one of those myself.