Depends on how you want to do it really. You can do most of the work with hand tools if you order your lams from other people. If you want to make your own lams, it will require a good chunk more tooling.
That being said, I own a 6x80 edge sander and a 14" bandsaw, both from grizzly, and find them to be indispensable to the way I make a bow. Add to that a few clamps ( I get by with 4 c-clamps, 4 2" spring clamps, 4 1" spring clamps, and two bar clamps. I can do any jobs I need to without too much trouble with that collection) and a bunch of files and rasps, and you've got about everything you need. Normal shop tools are always useful (vice, handsaw, scrapers, drill), and measurement tools (I have a flexible 36" straightedge for marking the limbs and things that require a straight line on a curved surface, normal ruler, a very accurate 6" ruler, a 24" true straightedge (thick piece of steel), and a dial caliper). I recommend getting a good collection of used files and rasps, super cheap if you have a used tool store around you, and using those for most tasks involving fiberglass, and just get one or two good quality ones for doing riser work.
Again, you can get away with a lot less, this is just how I do it. I'm not set up for doing my own lams, but want to add that ability soon, and to do so I'll get a thickness sander (probably the grizzly baby drum) and a better guide for my bandsaw so that I can resaw nice and thin with no problems.
Then of course you'll need the form, the hose for the form, and a pressure strip (all of which can be bought on binghams as a kit)a bike pump, and you'll need to make a hotbox. You can do a super cheap one out of an insulating styrofoam they have at home depot, which is what I did, but you'll want to upgrade it to a real one as soon as possible.
Hope that helps! I'm sure I'm missing some stuff, but that's the basics!