Buying New Rig, Need suggestions

[Dumshell]

Below is my new rig that I am considering for my new system.

Asus 9800GX2
Asus P5Q Deluxe motherboard
Samsung 250GB HDD
Relteek DDR2 PC800 4GB RAM(5.5.5.15)
Sinpro 750 WATT PSU
Intel Q6600 Processor
LG 19" Monitor

I just chose this coz I liked their make. However, I dont have much knowledge about their functionality.
Need suggestions speakers and perhaps a better monitor(22") and motherboard.I need to know whether that motherboard supports Nvidia SLI since 9800GX2 has 2 GPU's.
I also need suggestions for 22" monitor and speakers. And does that mobo supports Nvidia SLI since 9800GX2?. I have 2 such GPU's.

[Rawko]

Are you looking for a Hi fi speaker? Go for JBL then. For moderate effects go for creative. Will you be using speakers specifically for gaming? Then i think you will not require a high end one.

[RoninBlade]

The Asus Striker II Extreme is also one of the finest. Will be best suitable for your rig. Also i think, 9800GX2's built in SLI can also be used on non-SLI boards.

[Dumshell]

Are you looking for a Hi fi speaker? Go for JBL then. For moderate effects go for creative. Will you be using speakers specifically for gaming? Then i think you will not require a high end one.

I am looking for a 2.1 speaker. It will be specifically for gaming

[Hardwareman]

For 2.1 speaker, you can go for Logitech. They are good enough in performance and good for price too.

Also Asus P5Q Premium can be considered for that rig.