You need something like 120k for 59-60.
I had lvl 58 with Iios & Citadel under attack left and didnt even get 1/2 a level from it. 59-60 will take a whole indepth play through or 2 shorter plays.
Down here in Bristol I havent got my 360 so Im not going to get to 60 before ME2 is out. Depending on what you get depends if I finish that last 59-60 stint while ME2 is sitting unplayed next to me or not