What size tank are you thinking about getting this for?
both choices you stated above come with the nessecary hoses and don't need to have holes drilled in the tank. I will tell you a little about the Fluval because that is what I have experience with.
There are 2 hoses that you hook up, an intake and an outtake. Both of them connect to a strong plastic nozzle that clips into the filter (which you can either put in the stand under or behind the tank). The Hoses go up and around the lip of the aquarium with a strainer for the intake and a nozzle for the outtake. (you need to cut the hoses to fit your aquarium, instructions come with the manual. I found that the pipe for the intake was EXTREMELY hard to cut... I had to use my table saw to get through it quickly (They reccomend a sharp knife).
If you have any more questions feel free to ask.
aaron