I would get a couple of Arri Fresnels. They give you the nicest light in my opinion.
You can score them for cheap on Ebay used. They last ages. They are built like rocks!
If you get a good set of arri's, color gels, black wrap, ND film, Frost gel and also get a Chimera Speed Ring, so you can mount a softbox.
I think a good set would be:
2 x Arri 150Watt
2 x Arri 650 Watt
and maybe 2 Redheads.. 800Watt Arri.
Tbh, you will be nicely served with 6 of these heads. You can bounce them, diffuse them, whatever you want. They're all tungsten and you can turn them to daylight with color gels. If you look really hard, i think you can find that kit for about $1200 which is really really cheap!!