I'm thinking of doing this too but have little experience in lighting. So many cheap portrait light setups on eBay but I know you get what you pay for. In the meantime I'm setting up most of my portrait work with natural light in window seats or similar areas that I use eastern exposure in the afternoon, western exposure in the mornings or a nice northern expose window to have the soft light from the sky---very effective and beautiful but certainly not studio lights type of set up.