Someplace like Newmark Electronics would be a good source for a bench type experimenters power supply...All regulated and stuff..
As for the 110 circuits.. I just have four quad outlets nippled to the breaker box and with 8 circuits in those... And a couple 220's for the welders and stuff...
Get an outside type HID street light and hang in the middle of the shop... Unless you get a gigantic one they usually draw less than a hundred watts... That'll give you enough light to see.. The use area lighting as necessary for individual areas...
John