Well my only advice is to be careful over there, it is a beautiful city but the younger travellers get prayed on by the Russians, they are really intimidating when trying to get you to give them money, its a case of go but keep your wits about you, better to see it now though before it gets ruined by stag & hen parties, Franks is a good hostel although im not altogether convinced it wasn't a member of their staff who stole my passport, UK passports make big money in that part of the world!