2. Nc3 is not a good move. Just Can just play d5 and later or sooner you Will play C5 and take an advantage in the center.
But why Budapest gambit? Against d4 i play the Nice and active opening Black Knights Tango. 1. D4 Nf6 2. C4 Nc6. http://en.wikipedia.org/wiki/Black_Knights'_Tango
You Can also play King Indian, nimzo, bogo and grunfeld. They are also good openings.
I've been having a lot of fun with 1 d4 Nf6 2 c4 e5, the Budapest gambit. I finally felt like I had a handle on d4. But I'm having trouble now after 1 d4 Nf6 2 Nf3. This move seems to prevent my plan and I don't have any idea what to do against it. I don't even know what it's called to look it up.
Do you guys have any advice for me? Also, I'm interested in trying out the QGD if that would help me avoid this crisis.