Which digital camera should I buy?

Budget is about $200.00, looking for something that will accept san disk memory card, has night/twighlight mode, has a view finder for day time shooting, movie mode, if it doesnt take aa batteries, relatively cheap replacement battery. This is for travel, hiking, artistic creative photography, portraits, and pics of my dogs.
Something also, that ideally fits somewhat easily into my pocket, I currently have a cannon powershot A520, which is a little big, but fits.

FOR ABOUT $ 50. MORE YOU CAN GET A SONY DSC-H7—IT HAS A BUILT IN FLASH , 8.1 MEGA PIXEL , 15 X OPTICAL ZOOM , —-YOU SAY SAN DISK——BUT THATS A BRAND NAME NOT THE TYPE ——THIS ONE USES SAN DISK MEMORY STICK DRO DUO ( 4.0 GB ) ——-I HAVE HAD MINE OVER A YEAR AND LIKE IT