Simple PSU stuff

Hello again Folks,

I have a nice heavy toroidal transformer here, rated 160VA, with two
windings of 12V @ 6.3A each, a 20A full-wave bridge rectifier (100V
or 200V I think), and a big 50V 47,000uF capacitor. I'm going to hook
the windings in series, to get 24V. I want to build a power-supply,
but am wondering if I need to use bleeders on this? I'll also be
chucking a 24V fan onto the whole rig, so that should do the job of
bleeders right?

As for the load, it'll be 3 bipolar drive 2A, 3.2V stepper motors,
ala the type Sherline provide. Should be enough juice, no?

The next question, what rating and type of fuse would be recommended?
Should I put fuses on all the motors grounds, or would one single
one be sufficient?

I know this is a repeat so some earlier posts, but I have been
looking for three days on/off and not been able to find the original
message I was looking at. If I can get some good answers here, I'll
make a nice li'l image and some info and splab it up on the file
section for all to see. :)

Thanks