I have a Nikon D5000 and have been doing most of my portrait shots outside using available light, but now it is getting cooling I am doing more inside using natural light from window & the fill flash on the camera. I want a better flash but not sure what to go for? 
I only have a budget of £50 right now....... :shrug:
Thanks in advance!

I only have a budget of £50 right now....... :shrug:
Thanks in advance!