Software QA and Load Testing Solutions?

tekiegreg asks: "I've been asked by the boss to evaluate Load Testing and QA solutions for use by our company. Google Searches have yielded TestComplete and Mercury's solutions. However prices are very steep. Has anything in the Open Source world even come close to this level of functionality in a testing suite? Searches of Sourceforge and Freshmeat reveal nil. Are there any other solutions that people have tried, out there?"