currently have this archaic plasma that came w/ RGBHV MALE (to tv) -- VGA MALE

now i want to hook this up to my hd box via DVI (male) or component video (male)

so i need:

1) vga (male) -- vga (female) adapter + dvi (male) -- dvi (male)
2) rgbhv (male) -- component video (male) ..does this exist?
3) rgbhv (male) -- dvi (male) ..does this exist?

other options?

your advice greatly appreciated
thanks