Need help from you guys, im so desperate picking phone...

1. Brand.
SE, Nokia, HTC

2. Budget.
Below 1.6K

3. Specs.
Can take picture with good quality
Can store document, text, note easily
Good multimedia player (better with 3.5mm audio jack)
Can Install application (have OS)
Fast and no lag
GPS and touchscreen / qwerty Would be preferred

4. Type/Size. (Candybar, Clamshell etc...)
Anything

The last one thing I consider is SE P1i