Here are the two methods I use for transferring miniDV to DVD. The first method is the most expensive and time consuming, but allows for more editing and opens up more compatability doors down the road. The second is the fastest, easiest, cheapest, and most convenient. I have also listed the approximate cost of everything needed in case you don't have it yet.
1. Firewire to PC
You need these things: one firewire port ($40), one firewire cable ($25), good ediitng software ($60-100), an internal or external DVD burner ($150). After everything is installed, hook your camcorder to your computer with firewire (sony calls it iLink, but its the same thing). Use your editing software to import the video and burn to DVD, following the onscreen prompts. This can get complicated depending on your PC and software.
2. Direct to DVD
You need one thing: Sony's DVDirect ($230).
It comes with all the cables and software you need. Plus, it has inputs for S-video, composite video, stereo audio, firewire, and USB 2.0. This means that you can transfer video from almost any camcorder or VCR to DVD. You have the option of hooking it to your computer later on for editing purposes. Just turn your camcorder to playback mode and hook it to the DVDirect. Presto! Very easy, and you can take it ANYWHERE. I burned a DVD of my sister's wedding and passed a few out at the reception later on.
I hope this helps. Good luck!