Agreed, but any Apple software for a PC is horrendous. iTunes/Safari/Quicktime are all colossal memory hogs but worse of all they have so many hidden programs running behind the scenes that they continuously hog memory. I've seen malware infections less intrusive than a single iTunes instance.

The macs I use daily are admittedly old, G4s, but it's the same problem. When something like winamp runs so very well on old PCs you have to wonder if playing music really needs all that overhead.