Hi Artedna
You don't need a dovetail jig, see the URL's below
But If Bob has one for sale it maybe the right time to get one

When the door opens you need to check it out.
http://www.routerworkshop.com/drlockjt.html http://www.routerworkshop.com/boxjoints.html http://www.routerworkshop.com/gluejoint.html
Just a note***the last URL it's a real hard one to setup on the router table you can make a lot of firewood b/4 you get it right.
Also take a look at a router bit box you have,(the one they came in ) you can use the same joint for a drawer and it's easy one to setup on the router table.
Bj
