I've got a 2007 MacBook Pro that has been a champ for the most part. I've tried to maintain it as best I can, e.g. upgrading the OS to Mountain Lion and running apps to clean up my files (have CleanMyMac which is working well as far as I can tell.) Recently, however, I've been having battery and heating issues. Even if I charge it overnight, I can usually only get about 2 hours out of it before I go into my reserve battery power. I haven't really worried about it too much since I've always got a power source close by and keep it plugged in when it's in use. I've also found out that it no longer goes to sleep when I shut the lid. I haven't been able to figure this one out, so I just have to manually put it to sleep after I use it. As far as the heating issues go; it gets hot enough that I can't touch the bottom ... and it happens even when I'm simply browsing the web. My quick fix is to set it on some ice packs wrapped in a towel if I'm going to use it more than 15 minutes. Works real well, but it's a little inconvenient since I'm usually laying on the couch with it propped up on my lap ... just uncomfortable. Read online that I should try cleaning the fan or replace it altogether. I haven't ever "looked under the hood" before, so I'm a little nervous to do that and mess something up even further. Alrighty, so my question is, do I spend the money maintaining my current MacBook (replacing the battery, cleaning/replacing the fan, possibly upgrading the RAM) or am I better off buying a brand new one? It's not really feasible for me to do the latter right now, but I don't want to dump a whole bunch of money into the one I've got now if it's not necessarily going to fix my problems or extend its life. If it's perfectly fine to hang on to what I've got, what do you suggest I need to do to give it a "tune-up"? I'm willing to spend a couple hundred so whatever is necessary. I'm assuming depending on what I need to add, I'll have to take it to someone ... I just don't want to go in completely blind (as I do with, say, my car) and have them tell me I need all these things that aren't necessary. I won't know the difference. Any advise would be helpful, thanks! **Oh and another more recent problem: my external speak jack has stopped working. Hooked up the laptop to my TV to watch Dexter the other day and no sound. Well, there was sound, but it was BARELY audible, like the volume was turned way down, but wasn't. Not sure if anyone knows what's that about.