No, DoD should not move toward Macs. We used them in my area for a few years and got rid of them by the end of 2004. I can dispel the myth that Macs don’t crash, we used OSX and it was the biggest piece of crap ever. Performance was terrible and applications would freeze all over the place.
I don’t know where you’re getting the idea that DoD is moving toward Apple, that isn’t true at all. All new computers are loaded with Vista. They’d be better loading legacy Win XP, but you can’t buy it anymore.
As for the DoD I think they should switch to Linux.
Well, there's your problem right there. If you were using it for a few years prior to 2004, that would mean you were running 10.0-10.3. You have to go to 10.4 in 2005 (after you lost your Macs) to get the first truly good version of OS X. And unless you were on a G5, you were using the PPC 7 series, which was seriously showing its age around that time compared to Intel/AMD. Five year-old experiences with Macs are mostly meaningless.
All new computers are loaded with Vista. Theyd be better loading legacy Win XP, but you cant buy it anymore.
The DoD can still load as much XP as it wants under its enterprise licenses.