It definitely is a hard thing trying to compensate budget and equipment safety. I think for the most part you should up your budget to make sure you get a good strong sturdy tripod with ballhead. This will save you the headache of purchasing a budget tripod and avoiding a possible accident.
However like most have already recommended here the Manfrotto is a very nice brand, as well as the Vangard Alta. Why do you not just go down to your local photo store to check out some of their offerings. See how it physically stacks up. While it's more difficult going on random brands that people suggest, sometimes you need to put the item in your hands to see what it would really be like.