If you go HD, the Sony Video Monitor will need to be replaced, as it's a SD only monitor. You can get a decent HD monitor (24") for around $200. The important thing is to make sure that the monitor can be calibrated, in order to get your colors correctly displayed.
If you're using the Viewsonic monitor as the main display (ie, to view the NLE software), you'll be fine with it.
the best video for podcasts and mobile applications.
Why HD for this?
Thanks for your help. I have one more question. Do I actually need two monitors or will the computer monitor serve as a video monitor? I'm used to the old analog process of viewing the final video on a video monitor, but with HD, I would think that the computer monitor would give the same result as a separate video monitor. My ViewSonic would work, I'm sure, but it's a bit small for the HD format and I would like a bigger screen to work on. So, can I just use the computer monitor for editing and viewing the final product?
For Harm Millaard, I just think that HD will produce a better final product in small formats viewed as podcasts or on mobile phones -- plus almost everyone wants everything in HD now, and for some of the things I will be doing, it will undoubtedly give a better product. I want to upgrade my camera anyway, so I want to go to HD.
Small Town Gal
You can use a single monitor to edit and preview, as I do it all the time on my laptop. It obviously won't look as good, since the video is being scaled down dramatically, but once you get used to how it should look, you'll be fine. Once you've exported the final video, you can use a media player to view it full screen, just to make sure everything looks correct.
With that said, you can get a cheap monitor any time afterwards to view the final video (which I call "preview").
Thanks much for your help -- I do appreciate it!
Small Town Gal