Thanks. It is possible to get a decent wireless signal up there (the base station is only 10' or so from being basically just under it on the lower floor of the house), but the problem is that the two older machines I want to set up don't do wireless (and aren't worth upgrading). So, I need something to create the network extension wirelessly, then tether them to the upstairs device. From our discussion I think it will work, so long as the DSR can be the base station, and whatever is put upstairs will behave itself better than that NG bridging back to it.
Again, I have been looking at the 1522 and 1533, as I need a minimum of 2 wired ports, and thinking the 1522 will do nicely. The 1533 has some other stuff I would probably never need, uses internal antennas that I am guessing may cost me something in reception, and costs more. I just need something fairly basic on the inside of the network. Even the higher band of the 1522 is probably a waste, as I don't think the DSR broadcasts on that range. But perhaps I am not understanding the technology...