Personally, I find that with 3D modeling, there are two big issues for people just starting out:
One, knowing how to use the program and two, knowing what it can do.
If you're used to the ins and outs of photoshop, you will probably be able to manage the interfact in good time.
But to manage the second issue, I'd strongly suggest even just skimming through lists of tutorials for your programs, watch some videos of people modeling things, etc. Just expose yourself to the process as much as you're comfortable with.
Also, if you just want to make some pretty 3d things, try Sculptris [http://www.pixologic.com/sculptris/] out for a bit. May get the creative juices going.
The only thing to note about that is if you want to rig models you make in that later, it'd be good to model them in the T position or whatever is appropriate for said species/thing.
Good luck!
One, knowing how to use the program and two, knowing what it can do.
If you're used to the ins and outs of photoshop, you will probably be able to manage the interfact in good time.
But to manage the second issue, I'd strongly suggest even just skimming through lists of tutorials for your programs, watch some videos of people modeling things, etc. Just expose yourself to the process as much as you're comfortable with.
Also, if you just want to make some pretty 3d things, try Sculptris [http://www.pixologic.com/sculptris/] out for a bit. May get the creative juices going.
The only thing to note about that is if you want to rig models you make in that later, it'd be good to model them in the T position or whatever is appropriate for said species/thing.
Good luck!