[QUOTE=EXFFPM;2107757]I ended up with a LG GH20LP20 (long story) which recommends a Pentium 4 2.4GHz+ (I have P4 2.0GHz) and an 80 pin E-IDE cable (I have a 40 IDE). Should I install this unit or find one that meets my system requirements? Thanks for all the input!
Phil Sulkosky[/QUOTE]
What I would do is this: install it with your current 40 wire cable for now, just to verify that your burner works and isn’t a dud.
If it works OK, go to a PC store, or buy a new 80 wire cable online, and swap the cables when you get a new one.
But I would very much recommend buying a new cable. 
For just trying out the drive, this should be fine - I’ve had drives (Pioneer) that state an 80 wire cable is needed, but have worked fine with a 40 wire cable.