Maxi jet 1200 with the flow attachment. They really can push some water, but they are static. They are around $27-30. I have some of these if you want to borrow them to try. I only use them in hypo and I am not hypo'ing anything right now.
Hydor Korallias move some water for a good price and are reliable. You can control some of them.
The wp40 will be super-awesome if they work out. ...but I would wait if you cannot afford to "try" something. In the past, the company's heaters would shock people, their lights caught on fire (seriously) and their lights even released electricity into the tank (how is that possible?). People say that they have changed, but I am not buying one until somebody has good things to say after a year of using them. They still fall into the too-good-to-be-true category, for me.