mad_about_italy, or for short MAI...
Money. Money Money!!! The biggest concern for all us trav'las, how much do I need, how much will I spend, how much will things cost, How to get more, and how do I save it...Questions that plauge us no matter where we travel too...
4-5 months huh, well the costs of things may have changed sonce I was there last, 2001, the Lire was still around and the Euro was just entering cerculation, so if some of my figures are off, for give me, and I hope they will be corrected by someone who has been there more recently ( Dmac this means you
If your staying in hostels during the high season, you will be looking at 15E to 30E for dorm style rooms per night, now this can change when adding things like a ensuite bathroom and private accomodations in the hostel. USe of facilities (internet, laundry) will also cost a little more. But staying outside the city center will bring the cost down, and travel during the "low season" can also keep costs down.
15E a day for food on a tight budget ( supermarket food), or 30E if you wanna eat really well resturants), anything in between that will get you by.
Transport is also a big expence, if your treking through Italy only for the time you will be away, you might wanna get a Italy Flexi Rail Card
This will save you some $$$ in the long run, and you will not have to worry about buying tickets while your away. This must be bought before you go away though.
Night life becomes a expencive thing to do as time goes and and the money starts to dwindle, look for bars and clubs that do not charge a cover to get in, or offer special discounts to students/hostlers
Museums & Sights cost $$$ to see inside, if you picky on what you wanna go into it should not be a problem. In italy there is plenty of things to see without going in or paying for.
If you have a student card, bring it with you for sure, you can save some pretty good coin that way.
So all in all I would say about 1000$ a month or 75E a dayas a rough guess....
I hope that helps a bit, I am sure some trav'las will have some advice as well!!!