It's an awesome idea, but difficult to implement because of the AJAX-nature of the "My Account" section. But it's definitely possible, and we'll make it happen over the coming days/weeks along with comment notifications.
Do you guys have any ideas of how you would like it to be organized? For example, "Only 3D models" can be an option, so can "Sort by number of comments", "last uploaded" (which is how we sort by now), "rating", "views", etc. You can also get more creative with it. We can also have a keyword search, perhaps.
Also, we can take out thumbnails to make it quicker to load.
-Jake