can i transport apple lossless between pc & mac?


I bought a seagate external usb drive for backing up the apple lossless files i am accumulating in my desktop. The manual cautions against using the external drive to share files between pc and mac operating systems. I'm hoping that this is less of a concern with itunes music files, since i would hate to have to rerip all my cds if i decide ultimately to implement a mac in my hi fi, after having used itunes for windows to rip. For that matter i would hope i could revert to pc should i regret the mac choice. Will the operating system i use to rip lock me in for future playback?
wkraft
If the machines are networked all the disk format issues go away as the networking software handles all that. I think Wkraft was talking about connecting the external USB drive directly to both a Mac and a PC for backup purposes. If that's the case, my post above applies.

Herman, there used to be major issues with the way Macs handled FAT32, but I've found OSX 10.3 and above to be rock solid.
thanks for the info. it seems that establishing a network will be the solution. Any tips on making a mac network with a pc will be appreciated.
I switched from a pc to mac last year. I transfered all my music from the pc with my seagate portable hardrive formatted with fat 32. I have had it connected to my mac all this time and it has not given me any problems.