How easy is it to move a HVAC unit in your basement?

I'm planning an upcoming basement remodel and of course the HVAC unit is smack in the middle of my basement! I was wondering if anyone knew anything about the cost/difficulty in general of moving such a unit around to another part of your basement (preferrably closer to a wall, to maximize usable space)!

View this post on my blog: http://madeinhome.info/how-easy-is-it-to-move-a-hvac-unit-in-your-basement