✔ 最佳答案
I think best the camera in your price range is the Canon Powershot A560. It costs $135 at B&H and You can use the rest of your budget to buy a decent memory card.
Go here and read an extensive review:
Canon A560:
http://www.steves-digicams.com/2007_reviews/a560.html
Check the sample images, too.
If you want to save a little, check for the A550:
A550 review:
http://www.steves-digicams.com/2007_reviews/a550.html
I see no reason not to go the extra money for the A560, though. It has the newer Digic III image processor which is a little faster and adds Face Detection. You gain one stop in ISO (1600 vs. 800), it is a little faster in continuous mode and the LCD is 2.5" instead of 2".
You will need to add a memory card and I suggest the Sandisk or Lexar brand in any speed. You will spend from about $20 for a 512 KB card, which is perfectly adequate, to about $40 for a Sandisk Ultra II, which is as good as you'd ever want for this or many other cameras.
My brother has the A540 and my mother-in-law has the A530 - on my recommendation - and neither one has stopped speaking to me yet. These are the models that were replaced by the A550 and A560.
If you can go up to the $200 mark, look into the A570-IS ($170), which looks like a really nice camera. It adds image stabilization which is a real help for getting sharper pictures. The camera and card and shipping will run you about $200 at B&H.
Canon A570-IS:
http://www.steves-digicams.com/2007_reviews/a570.html