If you're just starting out, three power tools for general woodworking that are worth spending more money on include a good tablesaw, router and drill press. With these three, plus some hand tools, you will be able to build many of the projects in how-to magazines. Which tool you buy first can depend on the projects you are planning, but a good saw usually gets priority.
On jobs where you don’t want to be held up, like felling trees away from home, consider having two chainsaws available. Make sure both are in working order before starting. Then if one needs its chain sharpened, you can use the second one to finish the job. By using two saws any maintenance can be done between, rather than during, the project. Also consider doubling up on other small tools, like pliers and screwdrivers, so they can be kept in different areas to cut down on running from house to garage.