WildBill: Go for the semi-auto, it's a lot more fun.
Although I detested the man's politics, ruger makes some fine 22 semi auto pistols. You can go from basic to target on either of two different frame styles. You can get barrels from 4" to 10". I believe you can still find new ones for under $300.
In addition, S&W makes very good 22 semi autos, as does Browning and a number of other firms. You just have to shop around.
If you choose to go the single action revolver route, again, ruger makes a fine 22 single action. S&W makes 22 revolvers in double/single action, as does Taurus and a number of other firms.
I'd go shopping around a bunch of local gun shops and see what feels best in your hands. Good luck, and let us know how you do. Mikey.