Bar Reservation in Central Krakow- Near The Square

Can anyone recommend a bar (that does food), where I can book an area on a Friday night in Central Krakow?

I'm not paying for everyone, just organising the booking, but if I need to put down a small deposit to secure the area that's not a massive problem (not looking for somewhere really expensive where I have to pay a few thousand zloty though)!

Criteria:
Ideally near the square (but not 100% essential)
Must have space for approx 30 people (doesn't have to be private, just want to make sure we can all get into one place together)

Not too expensive, would prefer beer to be around 10zl

That's about it really...any thoughts?

irishmbassy.com

There is a top floor to the bar if you are a group of 30 they will allow you to book it.

Most bars will take reservations for a small cost, but you should always make sure that the money goes behind the bar - as in you can get drink for it. If not, then always ask for a receipt.