Need some advice on a new Router.

Well, it is that time again. Just went through another crash on my network, and it is time to switch.

There are many options out there, but I am quite limited (work at best buy). DLINK is no longer sold in our stores, so I can't get any of those, but if you know any other router set-up that would be good for my unique set-up that would be great.

Overview of my current set-up.

Brighthouse modem > DLINK DIR-628 Wireless N
-1 Wired computer
-6 Wireless computer

~300-400 feet away going through 4 concrete walls.

> LINKSYS WRT54GS w/ DD-WRT w/ 9DBi antennas
-2 Wireless computers
-3 wireless gaming consoles.

Now what I hope to do is do away with the repeater bridge for N compatibility. And then just use the repeater bridge with a dual-band router to connect my gaming devices...

Another option would be powerlines, but I have had mixed reviews about those, and wouldnt want to get them home and then return them.

But seriously, and suggestions would be greatly appreciated.