My budget:
Below RM2k

Olympus SP-560UZ:
+ Wide Angle
+ 18x optical zoom:
- No Color Accent and Color Swap
- Slow response (SP-550UZ has slow response, not sure abt this SP-560UZ)

Canon Powershot G9:
+ Color Accent and Color Swap
- Use lithium battery
- 6x optical zoom
- No wide angle

Canon Powershot S5 IS:
+ Color Accent and Color Swap
+ 12x optical zoom
- No wide angle
- Heavy

I'm still a beginner in photography, would like to get a nice prosumer camera as start. Which camera do u think is more suitable for me? I like the Color Accent and Color Swap feature in Canon (takes alot of time to do these in Photoshop i think?), and i also heard that Canon produces better photos than Olympus? Would like to hear more opinions from u guys

Canon prosumers and compacts produce vivid reds while Olympus cameras have more natural colour reproductions.

I've been using an Olympus prosumer for the past 4 years and the pictures taken by that camera is nearer to what I see compared to those taken by Canon cameras.

That's perhaps a bias as I've used prosumer of Canon for that long and I see the other way around.
Perhaps just rely on the reviews of the Dpreview for you tomake a better judgement.

Have you ever considering the Sony H9 ?