LOL, ok, so I typed all this up before I checked the link you added to your OP. I was actually looking at the "little brother" of the camera you linked to as a suggestion (about 4 grand cheaper as well). Since I typed it all up I'm going to post it anyway as I still think it's about the best fit for you if you really do want to be able to explore those high end functions down the line.
If I was in the market for a new camera (and had the budget for it) I would be looking at this, or something very similar to it.
Canon XH-A1s 3CCD HDV Camcorder
Reviews I've read have it as an out of the box and good to go type camera, but packed with the more advanced features when you're ready. Not "professional" enough to be shooting Hollywood's next great blockbuster but high quality prosumer camera.
It's a 3CCD camera (which mean one charged coupled device (ccd) for capturing Red, Green, and Blue (RGB)) which provides a higher quality image and sharper colors even for HD. Tons of shooting formats for customization. External output via firewire (which is by far imo and experience superior to USB especially for video). Two external mic inputs with independent control. Plus it's a Canon. I've never owned a poor quality Canon.
Now, the problem with this camera is that it is a more professional grade and geared camera than the typical one you might run down to your local Best Buy to buy. Which means it's accessories would need to be ordered or found at a specialty store.
If you just want a lesser camera, all the factors I posted about above can still be scaled down to your more consumer side products. I'm not the end all go all source of information, but I hope this at least gives you a bit more to look at to fit your needs.
-edit-
Here's a good little read about a few different sides of the modern camcorder you might find useful.
http://www.camcorderinfo.com/d/Reviews&level_b=Camcorder&level_c=HD.htm