Rob,
All I can say is: it depends
I have tried 5 different wireless routers in my house. Thank God for having a CompUSA, BestBuy and a Circuit City all with a couple of miles of home.
For my use, I found the NetGear WPN824 to be the best. I run 1 wired computer (which has Slimserver and all my music), 1 wired SB2, three wireless computers, a wireless SB2 and a wireless PDA. There are times all are running at once.
I have all the extras, like 108 mps, disabled. The computers are staggered over three floors. According to Netstumbler, I average a 24 mps throughput in the basement while the router is on the top floor. My 2.4 mhz phone system does cause drops. No problems with the microwave.
A lot depends on how many networks are in your neighborhood and what channel they are running on. Most routers are set to channel 6 as default. If you run channel 1 or 11, you should not have a problem.
My son likes to game on-line. When he is playing WOW and talking to his team mates over the net, it does slow things down a bit. I am planning to run a CAT5e drop for him.
For this system, SlimServer 6.2.2 was not a good thing. I was getting lots of drops all across the network. Rolling back to 6.2.1 solved all the problems.
So my answer to you is, it depends. I do suggest you try at least a couple of different brands to see if one will work better for you. It is cheaper to buy them through the net, but I do suggest you use a B&M location at first to see what works before you place an order on-line. I did end up buying from the CompUSA near me.