Bulb shutter for D70 and 20D

Still wonder which one to buy, can anyone tell me how long the Bulb shutter is allowed for these 2 DSLR?? Not much review have a mention of that...Thanks a lot!!

I think that they are unlimited. At least until the battery runs out. D70 certainly does 30 seconds - my hand gets bored after that!

Do you have a figure in mind?

Same for the 20D. I just held down the shutter for over a minute. (maybe I need more to occupy my time with?) Love the 20D, been gettting some nice shots of my son playing basketball.