can i hook up my computer that has a s-video output to a 1080i tv and still get a clear enough picture to use word and porgrams?
No, it wont be clear enough. Audio Authority, Key Digital and RCA make VGA to Component adapters starting at around $100. If you have an ATI 8500 video card or above, they sell an adapter for $500. If your TV has DVI, most newer video cards can connect directly to it.