You can use the same tooling you'd use for aluminum: 2-flute endmills, flat and ball-ended. The problem is that the spiral flutes tend to dig in, and want to pull the tools out of the collets. So make sure they're in really tight. You can also use unspiraled router bits, but there's a lot less choice in those. Whatever tools you use, make sure they're sharp. Once they've been used for metal, they won't be. HSS tools tend to be sharper than carbide, although the edges don't last as long. I like tapered ball-end tools for finish passes on complex 3d things, since they've got long flute lengths and are relatively rugged. Here are some I've had good luck with:
Of course, the actual tooling you'll need depends on your specific project. Another issue is the wood dust. Taigs were designed with metal-working in mind, so the slides and screws are relatively open. Try to patrol the dust as best you can, because it tends to combine with the oil used to lubricate the mill and form a dough-like substance that clogs things up. You can tear down and clean it frequently, or use copious amounts of oil regularly to flush things out (or both).