Glad I'm not the only one who hates bleeding my e36!!!!
I have found that putting about 2 litres less than required initially really helps,as it takes fucking 11.5 litres anyway so there always seems to be some left in the system somewhere or other.
I'll look into these pressure bleeders,sound good.
A positive car/van to bleed is a Nissan vanette/serena,big rad with cap,big expansion tank next to it,header tank up high and bleed valves right at the highest point of the system,it pretty much does it alone but if you get stuck there's loads of easy access areas.
I've never seen mine go over 1/4 on the gauge with boiling heaters.