Brussels

We're actually daring to think ahead to our trip to Africa. We will be in Brussels overnight on the way. Does anyone know the city and have any suggestions regarding a good hotel where we can stay for about $50 in the off season? Any other suggestions on places to eat or things to do (other than sleep a ton) during our 24 hour visit? Sometime soon we'll head to Barnes & Noble to read travel guides, but personal recommendations are always the best.