It seems that, unlike the first game, Mass Effect 2 (inexplicably) has a save limit. I currently have 50 full save slots and the game will not let me make any others. In ME1, there was a PC tweak where you could edit a .ini file in order to increase the number of allowed saves. However, I can't find anything in the ME2 PC tweaks that will let you do the same, maybe because the configuration files are in a different format for this game.
Is there any way for me to increase the number of allowed saves without endangering my save file(s) for import to ME3?