The more I look at it the more I like the Firewire 410. If only it was a bit cheaper

...This is an expensive hobby. I like the idea of being able to plop it right into a desktop machine as well.
If there are any other plugs you guys would like to make, feel free. I'd like to learn as much as possible before making a purchas..."investment."
Are there any direct comparison tests available for all these different products? If not I'll just have to listen to regular recordings, but there are so many variables I'd rather have some sort of direct comparison.
Thanks again.