and, for pete's sake, I hope you have a good graphics card.  todays mods really eat mem, and BC having a memory leak doesn't help.
note that 02-05's mods are generally small and crude looking, while 6 and up can cause older comps to hiccough.  I suggest you review all the "problem" threads, here (that are available) for the common error eras, noob mistakes, etc.  at the minimum, review the console report abilities threads, and if your any good at debugging, don't be afraid to give people a hand.