you mean daisy chain? but that's a good one man... lazy chain sounds so much better imo, heh
The current draw in your setup should be well in the means of a 1spot adaptor, so no problems about the overloading part. Methinks a DC brick will be a bit of an overkill. I've never dealt with power supplies before, but remembered reading from somewhere that the DC brick is basically an oversized and overpriced 1spot cos they're both daisy chained.
*shrug* think you should save the cash and go for a 1spot