|My favorite method of dual booting Linux with Windows is to use the built-in WUBI installer. By using this method, Linux is installed as a Windows program & as such, can be uninstalled at any time simply by using Control Panel > Add/Remove. All you have to do is boot into Windows, pop in the Linux disc & when the menu pops up, simply click "Install Inside Windows". You'll then have the option of selecting where to put it & how much drive space you want to allocate for it....you can designate an entire partition or HDD if you like. Here's a look at the popup meu:|
You can actually use a similar method when dual booting Windows. Assuming you install XP 1st, just pop in the Server 2003 disc & wait for the menu to pop up.
Or if you want to do a twist on wizard-fred's suggestion, install each OS individually, then use a boot loader such as GAG.