Yeah any DVD recorder should read the V+ signal...even the cheap ones. If a certain member Spiderplant is doing his rounds, he might know of some that don't
It is as simple as one scart lead between V+ and DVD recorder.
Hit your V+/TVDrive button, select V+ Extras and there should be Copy to DVD/VCR. Select the programme you want to archive on your DVD recorder using the blue/arrow keys/select buttons. Press the yellow and then OK to start the copying process. Hit the record button on your DVD recorder remote (making sure you are recording from the right AV channel) and leave it until it has finished :-)