These our the rough expenses so far. 

Amsterdam
Hotel: 30-50 Euro
Coffee Shop: 6-8 Euro per gram
Beer: 2-3 Euro

Budapest
Apartment: 250 Euro for 5 nights
Beer: 200-300 HUF (1 Euro) for a liter
Typical meal: 1000-2500 HUF (3-10 Euro)
Internet Cafe: 100 HUF / 10 minutes  (about $0.50 / 10 minutes)