Pretty nice build, not sure I'd call it budget but maybe I'm just poor.
The power supply is not so good quality (though it's kinda neat it has VR in the product code). Might consider a cheaper and higher quality Corsair CX550M, or the CX650M if you want more room for upgrades.
The hybrid hard drive is pretty pricey for what you get. I'd just pick a regular HDD, and then add a separate SSD if the budget allows. Or you can skip it for now and add it later when you have the money.