Can anyone give me an answer for this question - Can I use an XDA headset with my Treo 600? In fact, is there any XDA stuff that I can use with my Treo?

My reason for asking is that my brother's company uses XDAs and they have a whole bunch of stuff in their "junk box" and have said I can have a couple of things if they are of any use to me!

Now, being a scaredy-cat I don't want to start plugging XDA stuff into my nice Treo 600 only to find it messes it up and so I would appreciate any help you can all offer.