dovetails - with jigs and otherwise
I don't want to start a dovetail jig war here, Paulo, but I think you'll find dovetailers divided into three camps:
1. those who use jigs oriented to the router table,
2. those who use the more traditional jigs, like PC and Leigh, where the boards are clamped in the jig, and the router used free-hand with guide bushings, and
3. those who insist a proper dovetail must be hand-cut with (the proper) saw and chisel.
FWIW, I fall into Camp 2, using a PC 4200-series jig for fixed-space dovetails. The PC Omni Jig, and one of the Leighs, also allow variable spacing, coming closer to the custom look of hand-cut dovetails. I feel this type of jig offers better repeatability in the set-up for "production" type work. I also use two routers - one with the DT bit for the tails, and one for the straight bit for the pins. Once the depth is set properly on both routers, you can dovetail all day without further fiddling.
Obviously, however, there are plenty of folks in Camp 1 who are happy with their setups. Those in Camp 3 are usually folks involved in making "fine furniture" and custom pieces, where "machine-cut" dovetails would seem inappropriate.
I'd suggest looking at all three methods in fair detail, and then pick the method that seems most intuitive to you.