Buy any reputable and cheap LASER printer you can find. You mentioned you won't be doing much printing. I don't print much myself. Anytime I buy an inkjet, by the time it runs out of ink, it will cost as much of the printer itself. I know I can buy cheaper versions of the ink cartridge, but still. At that point the printer would be a year and a half old already.
I bought a $60 laser printer. And I know that thing will take 3 years before e toner runs out. At that point, I will just buy another laser printer in that range.
As far as Mac accessories, any external hard drive that has FireWire 800 would be nice. An Elgato HD TV receiver is one of my favorites. Honestly, that's about it. That's the point of Applle products, you get pretty much everything you need on that one purchase.
On the Mac app store, you can get iWork. You can download a demo as well to see if you can get used to it. I've been using it and use my files back and forth between office and iWork with no issues.