Smith Victor sells a cheap kit with two hot lights for $115 or so. Also, don’t forget the Home Depot school of lighting. Cheap work lights on towers, fairly white, slightly tungsten on the white balance light. Take the wire mesh off the front. Can be had for $20-$40 depending on where you go. Just don’t burn your house down with them 😉
Personally, I use an SB-600 and SB-800 Nikon, with reflectors, filters, etc. Not as strong a studio flash setup, but I can take it anywhere, and the remote command is wireless, so I can toss the SB-600 in odd places for interesting lighting effects. I’ve taped it to things before, or I just have someone hold it for me sometimes.