TechwareLabs has an editorial on Enhancing Your Dual Boot System
>> Enhancing Your Dual Boot System
After you created a Dual Boot system you need to know how to enhance your dual boot system. I will show how to by having both Operating Systems use a shared storage space and go over some applications that work in both Operating Systems. This will give you a good stable platform for testing or for just learning.
>> Enhancing Your Dual Boot System