i ditched nero a while back also - but as Antman said, nero vision was/is pretty good for making custom dvds, and had a half decent (if somewhat flakey) menu editor too...
i tried a few freebie alternatives - i liked cdburnerxp for a while, but then it started bugging me, and i just couldn't stand imgburn, so i had to spend some money on ashampoo burning studio 9, which does pretty much all i want - but i do still miss nero vision...sigh..