Connecting my computer to my HDTV

[jimbojimbo]

I'm trying to figure out if there is a way I could connect my computer to my HDTV, and receive a HD picture. I don't have a DVI port on my computer so it's making things a little difficult. Here are the ports I have:

Computer:

VGA-out
S-video

HDTV:

HDMI
Component (one with 5 connectors, one with 3)
S-video

Is there any way to use the TV as a monitor and get a HD signal out of it?

I'm pretty sure you can't get HD out of s-video, so maybe using the VGA port? Is there some sort of a VGA-component cable I could get that would give me a HD picture?

EDIT: Here are some pictures of the inputs to make it easy:

Computer:

HDTV:

 

[esa193]

dont even bother your picture will look horrible in highdeff
cuz the only way u can hook it up is s-video
if u had dvi thats a diff storry becouse there r adapters for that

 

[Juice1]

get a vga dvi adapter
then a hdmi dvi cable