QUOTE(hengguowei @ Dec 8 2010, 10:12 PM)
okay. Thx but I don't have 1mil to spend.

I'll let my mum know when she's free to go buy camera

The best is to hands on the camera yourself
Feel the difference and play with the menu, buttons, setting, take some photos. Both have different feel, some people prefer one over the other.
D90 now going very cheap since D7000 released; D7000 will be a very good choice if you have the money.
Get a zoom lens and also get a prime lens; prime lens will give you quality and nice "bokeh" especially for portraits, it's also fast and very good in low light condition with aperture like f1.8 or f1.4. You can get a cheap prime lens below RM400.