Best way to make machine multi-boot

[Frank Leonhardt]

I shall probably regret asking but.... :-)

What's the best way to set up an HD to boot multiple operating systems 
in this day and age?

My natural inclination is to go for boot0, but <gasp> I'm prepared to 
consider the possibility it may not be the best. What I want to do is 
get a few versions of Linux and *BSD on one drive - for testing 
purposes. It might be handy to have FreeBSD on there as well, and 
possibly Windows or Indiana.

Normally I use one OS per drive, if I really want to run something else, 
but in this case I'd need too many drives.

So, boot0, lilo - or something else like plop or gag or even Windows XP 
thing-whatever-its-called? What's the smart money on? I've not done this 
kind of thing in a very long time and I'm worried about unexpected 
gotchas with partitions/slices, MBR vs  GPT or the PITA OS I install 
last zapping the whole lot.

Yeah, I'm blatantly attempting to learn from other people's mistakes here.

Thanks, Frank.