All those small dovetail jigs look alike, and work for a lot of small jobs. The problem lies in the fact that most of them have plastic templates. If you are going to do a lot of dovetails, you might want to look at a unit that has aluminum templates. An extra $100 upfront might sound like a lot, but could save you a lot of frustration later. I have personally had to replace a template because of wear/abuse.
Sears has a little bit bigger unit for $199 (Craftsman Professional 16 in. Dovetail and Boxjoint System Sears item #00925455000)
Amazon has the Keller jig for $120 for through dovetails, or the Portercable omnijig (I wish I had that one!) for $300.
Woodcraft.com has the AKEDA DC-16V Dovetail Jig, which is supposed to be really easy to use, for about $300. I haven't played with that one though.
Like most everything else, it depends on what you are going to be doing, and how often you are going to be doing it.
Check your harbor freight flyers, 'cause they have one for $30-$45 that looks a lot like everyone elses half blind jig. If you aren't going to be doing a lot of dovetails, maybe that would be an economical option.
Sears has a little bit bigger unit for $199 (Craftsman Professional 16 in. Dovetail and Boxjoint System Sears item #00925455000)
Amazon has the Keller jig for $120 for through dovetails, or the Portercable omnijig (I wish I had that one!) for $300.
Woodcraft.com has the AKEDA DC-16V Dovetail Jig, which is supposed to be really easy to use, for about $300. I haven't played with that one though.
Like most everything else, it depends on what you are going to be doing, and how often you are going to be doing it.
Check your harbor freight flyers, 'cause they have one for $30-$45 that looks a lot like everyone elses half blind jig. If you aren't going to be doing a lot of dovetails, maybe that would be an economical option.