I love taking beauty photographs, but getting the right lighting is difficult. This is because you need soft even lighting, for a flattering look. Anything with flash is not flattering and is harsh.
A beauty dish can be home made! Check out this link:
http://www.diyphotography.net/studio-lighting-flash-mounted-homemade-diy-beauty-dish
With this you can use you own flash on your camera or a light head if you have one. Give it a go! I use my beauty light an awful lot :)