Alright I'm happy with my camera and lenses (Nikon D40, 18-55 kit, 55-200 VR, 50 f/1.8 ) so now I think it's time to invest in a new tripod and a flash. I do alot of studio and night type photos so the cheap $20 tripod I have now isn't cutting it anymore and I've never had an external flash before.

For the tripod I was hoping to get something very sturdy and easy to use, weight isn't too much of an issue and I kinda wanted to keep it in the price range of $50-$100. I know I'm not gonna be able to get the best for this price but are there any decent ones available or should I just deal with the one I have now until I can spend more?

As for the flash I'm completely lost haha, I kinda wanted to find a cheap slave just to learn with, maybe around $35, or again I guess I could hold off until I can spend more on a speedlight or something. So what do you guys suggest? Thanks