I think if you just want a point and shoot have a grummage about on a site for deals on something simple and sensible that'll last you a few years. I'm no good at photography but from what I've read there's a lot of sense in CountyRat's link. One does see some pretty spectacular shots taken on modest gear and in contrast I've lost count of the times I've ripped the EXIF out of someone's photo only to marvel at how someone took a pic that crap with a camera that good.
From that link I like this analogy on the MP race:
That reminds me about the guy who breaks a wrist and asks his doctor: "Doctor, will I be able to play the piano after this heals?" The doctor replies "Absolutely, no problem!" The man laughs, and points out that that's great, because he never could play the piano before!
That said, I do think the position there is a tad extreme for the lay person. I'm sure someone that knows photography can get the best from a crap camera, but then there's the learning, and it doesn't strike me that you're interested in learning this. Cool. Something with convenience features and a bit of future proofing will probably make you the weak link. It'll last you right up to the time when you break it. On that, I wouldn't scrimp too much. Your figure of about $100 might tempt you to always go lower. Personally, I'd spend the extra $20 if it was needed to have something you might still be using in 20yrs. Anyways, like I said, photography aint something I'm good at so any of the several declared professional photographers who post their photos on this forum clearly have more weight than I.
Onward -
Here is a link I have refined to display all the cameras these people have at between half price and nearly free. Have at it.
That said, if I were in your boat I'd probably snag
this.
I wont bother linking to reviews but I found quite a few that like what it does. It's a little more bulky than others but ho hum that's because you can run it off rechargeable AAs. Not just an LCD screen is good in mah view. Little bit of stabilized zoom is a nice touch. Not frugal with the MP. It's got a bunch of auto settings that seem ideal for someone that doesn't want manual control...blah blah.
2cents