Lowell lights are pretty much standard film school kits. Litepanels are the new darlings of the run & gun crowd. They even have a housing for the 1x1 so you can use it in your pool sessions. 
If you want something a bit more run and gun, I'm afraid you'll have buy a few accessories to handle camera and lights. Check out the Red Rock Micro Nano or the Zacuto.
For setting up lighting in the OR, a light clamp and small panel can be a great thing. I think you first have to figure out how much lighting you need to light your OR, studio etc before you decide on which way to go. LEDs like the Litepanels are thin and with battery packs can be put it all sorts of small places, unlike the bigger Halogen/tungsten lights.
There are many small LED lights available for on camera use which cost less than $100 nowadays. Do a little search on BH or Adorama.