Well im guessing most of you have seen the infinite XP Glitch Vid on youtube if not here it is
Deus Ex Human Revolution - Infinite XP & Praxis Glitch - YouTube
but I know a couple of places where you can stock up on nuke viruses & stop worm software that you should get before getting on Jensen's computer for the XP first of you will need level 3 hacking: capture & all 3 hacking: stealth 5 praxis points needed.
First head into Captain Penn's office (the one needed for motherly love) there is a security panel on the wall hack that about 10 times & you will get 10 nuke worms (doesnt look like it until you actually finish the hack job
Second is after you get into the copshop from the sewer where the panel is to stop the wall lasers keep doing that 1 as many times as you want to as that will give you both nuke virus & stop worm u will be stocked up in no time than head for Jensens compuer
and 1 bit of advice to save time while on Jensen's computer even though the 2 square nodes give 250xp each dont worry bout them until your last hack as they dont accumlate I found out the hard way also if u want to max Jensen's stats your going to have to get 300,000xp, 600 reloads