The best screwdrivers (for me) i've ever used are Facom - big handles which i like. Their tools are phenomenal and they do a lot of stuff for cars like spanners and socket sets. Pricey though.
Those Magnusson sets look decent if you're on a budget but i can't vouch for them as never used them.
I've got Stanley FatMax VDE's, they're alright but not something i'd buy again.
I personally don't use side cutters much for installing because i hate them. I usually use something like the Wiha Z14117006SB cutters because they have a straight cut on them and you can strip flex and 1.5-2.5 with them.
Things you will 100% need on site compared to college is different but what you definitely need for site is, imo, as follows:
- Something to cut/strip cables with. Most guys use side cutters for it all.
- Cordless drill as a minimum, but impact driver very handy.
- Level
- Selection of slotted, a couple of pozi's and a couple of phillips screwdrivers.
- Volt stick as a minimum, voltage test leads preferable.
- Hammer
- Knife
- Pencil
- Sharpie
- Tape
- Junior hacksaw
- Grips
- Something like universal pliers (for pulling cable and doubling over, i personally use bent needle nose)
Anything on top of this depends on what type of site you end up on whether commercial, domestic etc, but you might want to look longer term at stuff like allen key set, multi tool, SDS, grinder, board lifters, rods, bush spanner, hole saw set etc.
I'm working commercial at the minute and some blokes are turning up with literally a selection of drivers, side cutters and a hammer. I was putting in tray today and all i needed was a pair of snips.