There may not be a speed increase for burning but there could be a speed increase for reading the disk. I have read (I dont remember where) that with my mobo, maximus formula, if you used ide it would slow the entire system down so the drive could keep up with the system, this is all with a sata hdd too though.
Also there is really no reason not to get a sata drive anymore because conversion cards are like 12$ on newegg, and you can use the drive for years to come in new builds.