to agingamer- component is like ddr2 ram and rca is like edo ram. so component is faster,better,o k?
if your tv has only one component input, u can hook up your multiple components sources through a av receiver such as yamaha or onkyo.... its worth getting one ok if you dun have one yet

to ilfr- yes, a bigger tv is always better for everytng!

Yes, msia may not have HD ready tv broadcast yet, but who knows, astro and mitv might do it in few years time.
With a HD ready TV, you can get better quality out of existing dvds using DVD players with HDMI or DVI outputs !! so yes, its worth getting a HD ready TV.

Dun forget , XBOX 360 will support HD also,