Having a sump in the basement is great! I like it because you have room to go big. I have a 100g rubbermaid stock tank as my sump, plus a 60 gallon refugium, and another small tank plumbed into the mix for growing out small fish like baby bangai.
Rather than cut a hole in the floor, we cut a hole in the heating ductwork and ran flexible tubing through and out a heating vent that was right where we wanted our tank to go.
The remote sump really helps keep the tank cool. I have bunch of VHO and PC crammed over my main tank (155g) and two 175 watt MH over my fuge, but don't use a single fan.
Basement sumps are just great. You have more room to work and you can keep all your meters, heaters, Ca reactor, top off system, anything you want out of sight of the main tank. I could go on and on about how preferable basement sump are. I think the only downside is that you have to pump water farther than if the sump was just under your tank, so a more powerful pump is in order.