Your HD movies will play back really well on my HD dvd player...hooked up to my HD capable TV
Oh, wait, HD dvd players aren't out yet, and HDTV adoption rates are still low, because there's very little programming available in HD.
So basically, HD is useless right now, except to future-proof your film company. But oh wait...by the time HD is actually the industry standard, you'll be able to get HD equipment for way cheaper, and it'll be better than whatever you can buy now. So you're more or less just pissing away $5000 for nothing. Way to think it through....