A little help for some one with limited knowledge and budget.......

I'm trying to decide whether the budget I'm dealing with , about $800, will point me towards a home theater in a box or would I be better served putting pieces together. The size of the room I'm dealing with is about 18' x 15' and the ceiling is about 20' high. I doubt I'll be able to afford anything cutting edge but, of course, I'd like to get a few years use before replacement.

I'm about 50-50 on the music sound quality/movie watching issue but, of course , I would prefer getting quality in both areas. A 5.1 system would be preferred over a 7.1. I have in place a 47” Vizio that I like , a Wii , and XM radio. The audio I have now is a bunch of mismatched stuff that has go to go. I would prefer any dvd player that's included in a HTIB system to be a multi disk player and wouldn't mind if I had to make seperate puchase for that . I hate getting away from the table during the poker games.

I know this is a basic type question but I've not had verry much success in my searches. If this has been covered in a previous thread, I'd be grateful for some one pointing me there.

Thanks and I hope everyone had a Happy Thanksgiving,
Larry