If you've recently picked up a Raspberry Pi, I can recommend this premium case, currently 20% off. It's a big hunk of aluminium that acts as a heat sink. You won't need a fan, so this can run silent and cool. Here's a comparison showing how impressive the cooling is vs attaching the standard Rpi heatsinks.
This is the Gen2 that is designed primarily for the Pi 3, not the earlier ones.
You don't necessarily need this. For me though, running mine in Qld summers, I've found this works best for my needs.
Thanks, good to know about this case.. However, the current price looks to be the normal price. It was USD$3 less last month before returning to the current price where it has been most of the year.