some of the ikea stands take 100kg. if you look at stands in general, most of them tell you the load they will take. if you then look at the manufacturers website of your tv you will find the weight of your tv
most stands will probably take a couple more kg than mentioned, just to be on the safe side. i doubt the weight of stuff on inside shelfs will make much difference unless you have a whole load of heavy stuff (ie. big amps) - a tip would be to put the heavy items on the bottom
i had a 32" widescreen crt which weighed a ton on an ikea av bench and it handled the weight no bother at all. obviously a 36" could be a lot heaver. i know compared to my 28" 4:3 crt the 32" was about 4 times as heavy, but the 32" was a FST type and a lot better quality. my 50" plasma is lighter than the 28"
my stand is from ikea and sounds just like what you are after, but i'm not sure what the name of it is as i got it second hand. i think my mate said it was about £80, but it is a fairly solid unit and doesn't look like cheap crap
actually thats the unit i have, it should do the trick. not sure the name of it. its on this thread so you could maybe ask the guy who posted it (the get your LCDs out thread)
get your lcds out for the lads!! (Don't quote with images!)
actually i just noticed the guy just replaced his 36" CRT with a lcd, so there you go, that unit does take a 36" CRT - it shouldn't be too hard to find on the ikea website, they only have so many AV units
if your unsure the make and model of your tv, google up a few other 36" crts and look up the weights from the manufacturers websites and you'll get a rough idea, so you can check the weight loads on units from ikea/argos/etc