<font color="aa00aa">mint,</font>
u wanna do F&E in Turkey? or Istanbul only?
Istanbul is okie to do F&E, but if u really wanna see their "unique" land/natural formations stuff, i'd suggest u take a pkg tour cos some places, e.g cappadocia, is not very accessible, unless u wanna spend 3-5 days in a place and explore slowly. then u hv to include the time for travelling from place to place, which is easily 5 hours drive!!
we went in July, weather is pretty good for me in Istanbul, but as we travel around (sorry, dunno towards which direction cos i geography idiot), it gets pretty hot. Our 13-day pkg included <font color="0000ff">Istanbul, Ankara, Cappadocia, Konya, Antalya, Perge, Aspendos, Aphrodisias, Pamukkale, Ephesus, Kusadasi, Pergamum, Troy, Canakkale, Gallipoli</font>
we took a land pkg from Pacha Tours, booked via internet. u can check out
http://www.letsgoturkey.com/trips/index.asp . do a search for <font color="0000ff">"Turkish Delight"</font> or select from their trip portfolio (dropdown box)