Tell me about Insanbul

I agree that staying in Sultanahmet is the best idea. And you can get rooms for
much less than 50 Euros. Here's the best web site I found for Turkish travel in
general, including a good Istanbul guide:

http://www.turkeytravelplanner.com/index.html

I'd highly recommend the Eyewitness series travel book for Istnabul published
by DK Publishing. There's a top 10 must-see section at the beginning of the
book, and I'd highly recommend doing all the things listed. The most fun my
wife and I had were on the Bosphorus cruise and in the Grand Bazaar and Spice
Bazaar.

And while there's lots to do and see in Istanbul, I do have a caution for you:
Be careful about all the extremely friendly acting men who will approach you
(harass is more accurate) constantly. They typically act like all they want to
do is strike up a conversation with you, but believe me when I say every single
one of them wants to sell you something. Do not let any of them guide you
around because they always want something in the end, whether it be a direct
payment for their services or to take you to a bunch of stores. The merchants
(especially the carpet salemen) are absolutely relentless. After a couple days
my wife and I learned to never make eye contact with any of these people and to
never, ever stop when they start talking because they'll never let you go
again. When approached by them just give them a smile and a quick "no thank
you." It's annoying to have to behave like this when all you really want to do
is take a nice leisurely stroll, but the reality is that you simply have to do
it or they'll never leave you alone.

But don't let this scare you. Istanbul is unique because of its ancient
traditions sites mixed with lots of modernity and westernization. It took us
some getting used to after more traditional western European destinations, but
I'm very glad I went. Feel free to email me with any specific questions and
I'll be happy to help you as much as I can. Enjoy your trip!