i want to build my own for now, and either improve it over time or replace it with a commercial unit
if/when my projects and needs get more sophisticated. though i have a bunch of things still higher up on my wishlist.
including a DSO (currently have only a 1st gen dso nano) and moving to another house.
as for the ATX case, my intention was to put it back in the original case and build all the externals into the side.
all that will change in the end is there will be fewer wires, some room made by removing bulky connectors and soldering
wires to the board, and the back side of all the binding posts and display etc.
which, on that side should not effect airflow too much.
if i add another heat sink though that will change i think.
so right now i think maybe going with the HP one for the variable might be better.
though i don't have a case for it that can fit the additional stuff.
so for now i think i will build the ATX with the fixed outputs and a temperature display.
ill use the polyswitches for protection, and add LEDs on each output to let me know if i popped one.
and i will set aside the HP one for the variable unit, and treat that as a separate project.
prolly end up going for suggestion 1) with an option to upgrade to suggestion 2) later.
so for the ATX fixed output unit, for the load resistor on the 5v, could i use one of the ones from this thing?: