I'm currently doing psp_llr_48290834_2 but there seems to be something wrong.
It says that there's about 538 hour remaining, but it has to be completed before 11-5-2010 20:58:22 (that's the 11th of May, not the 5th of November).
A little calculation tells me that if I do anything on my computer that takes CPU time or reboot my computer, I will not finish the project within it's deadline. This kind of deadlines seem to be a bit odd to me. You should at least give some space to do with a computer what it's made for: using it.
By the way..... PC is a quad core @3Ghz
A little update: 2.9% done -> 503 hours remaining. It seems BOINC can't count time.