Vlapinta, as far as your skimmer goes, IMO I would go with the tunze. Now I will say, that I've never used either, however, I know tunze has great products all around. Not that hydor doesn't have good products, but I know their nano skimmer, the slim skim (if that's what you're considering) does require a specific water depth (I think about 12") for it to work. It fills with an overflow not unlike those on out tanks. So if you don't have adequate water depth in the back compartment, the hydor won't work.
As far as your intank media baskets, i am using the custom caddys. As a temp setup, I have the included yellow sponges on both sides to catch any large particulate, the on one side I have BRS rox .8 carbon in a media bag (will be replaced with the IM mini reactor). On the other side I have a few bioballs and the included green phosphate pad (will be replaced with the magnafuge led and chaeto.
I think this setup will get me a decent filtration system. I'll probably tweak it a bit once I get everything. If anyone has any suggestions, let me know!