I just came back from a Budapest weekend. (Thursday morning to Sunday night)

It was a great trip. Three days (no shopping) gives you a perfect overview of the most important sites but I have to admit that we were pretty productive.

Prices have NOT been as reasonable as I had expected, it's almost as expensive as in western Europe. Exceptions is public transportation (perfect system in BUD) and hotels.

I can recommend the Hotel "Castle Garden" in Budapest. It's a brandnew four star non-chain hotel right next to the Castle Area in Buda, super clean, yummy breakfast, free internet and large rooms with an outside terrace. Calm area, five minute walk to the metro and shopping/dining possibilities. Best was the fare, €50 for a standard double room. Staff was super helpful and friendly. They have a website to check out, just look them up on Google.

I am happy to assist if you need further assistance.