If you are doing still life you don't need a lot of light as you can always do longer exposures. And if you are shooting black and white you don't need to worry about colour temperature. Which means you can pretty well use any lights you can lay your hands on. Plenty of stuff to experiment with, likely even in your own house or the local hardware store.
When it comes to diffusing or shaping the light, again, you can improvise just about anything. A few of the 5-in-1 reflectors you can buy at photo stores would be pretty handy though, if you take the covers off they can be used as large diffusers.