A friend posted these today and I'm in love! MathsExcellence.co.za is a South African website that has plethora of resources for both math and science. There are videos, worksheets, even virtual textbooks; all free. Math Celebrity.com has worksheets, tests, and quizzes for just about everything mathy you can think of. And I've been told that if they don't have what you want, email your request and it will be posted within 8 hours! Again, all free.
thank you thank you thank you It seems as if there's NEVER enough math practice. Sometimes we get to the end of a lesson, I look at the last set of problems, and think, "I have to find MORE? AGAIN?"