thanks Rana sahab, I had originally planned for kaghan valley but some of my friends had a bad experience at naran they were looted in camp. Since this is my first trip with wife i'm not taking any chances.
I've been to gilgit, astore and hunza before and I really like those places so I'm planning trip to those places 
i'm pasting my itinerary below, please do advise me if you think any changes should be made
Starting from 25th May,2013
Day 1 - flight to ISL
- taxi to RAWALPINDI/pir wadhai NATCO stand
- Bus to GILGIT - 18:00 onwards (23 Hrs)
Day 2 - Reach GILGIT in evening
- nightstay at GILGIT
Day 3 - Jeep to Naltar in morning around 2 hours by jeep
- Day time exploring in Naltar
- Overnight stay in Naltar
Day 4 - naltar to GILGIT in morning
- GILGIT to ASTORE leave around 11 am from GILGIT
- get to ASTORE in evening
- night stay relax at ASTORE
Day 5 - day trip to rama lake
- if feasible spend night at rama lake PTDC
- otherwise back to ASTORE
Day 6 - day trip to deosai, ASTORE to chilim to deosai
- lunch at chilim, back to ASTORE
Day 7 - day trip to trashing
- excursion to rupal valley
- evening ride back to ASTORE
Day 8 - free day
Day 9 - ride to GILGIT, PIA flight back to RAWALPINDI
- ride to Lahore in daewoo
- night stay in lahore
Day 10 - day in lahore, leave for KHI in daewoo
Day 11 - reach KHI
So my questions are:
1. I dont know about Deosai, it may be open at end of May or not - so is there any alternative if deosai is closed?
2. Trashing (or Tarshing maybe) will be new to me, I know that jeeps can go up to tarshing but how to get to rupal? is this route do-able with family?
3. i have 2 free days in between, can anyone suggest places to visit or changes to plan?
Thanks in advance 
Syed Ahmed Haider