Well still, putting your money in a good compressor now will only result in more opportunitys later! I'm using a 5.5hp 150L compressor, that delivers up to 9bars of preassure.. this will drive anything i ask it about in my whole garage. and keep a constant preassure at about 7bars if i do sandblasting, or just spraying air..
The step from a 2hp 50L tank, to the one i'm using.. it might be 150-300 dollars more expensive.. but the difference you get.. i mean wow! And so, you don't need to get the best brand out there..