I used to dual boot with number of different Linux distros - never had problems...
When you install be sure that installer recognize your Windows... then it adds boot menu to loader wether it GRUB or LILO...
Go for it... be backup your important data anyway...
It is not worth the effort to switch your bios settings each time...
The all distributions I have used (Fedora Core 3, Knoppix install, Debian Woody and Sarge) recognized my windows and allowed dual boot without any problems...
Today it is really easy... and usually do not cause problems...