looking for a good point and shoot

Hi,  I'm with biza43's post.....  It's a bit hard to ask us to be more specific because we don't know your needs, other than that you seem to have been happy with the A630 since around 2006/7 and are comfortable with the IQ from jpegs.  This description is so broad that dozens of models will do.

I'd comment that there's nothing quite as good as simply liking a camera to make you use it and enjoy it.  The A630 was an 8mpx model with a 35-140 zoom.  Most cameras now exceed 8mpx, and there are many with zooms crossing that range.  Some of the better ones start at a 24mm or 28mm equivalent lens (like the G15, which is 28-140 equivalent).  I'd suggest visiting a store that carries a good range and see what you like.  To narrow your search down a bit, I'd suggest asking yourself questions about the following things before you check a few out........

• What's your budget?  Better models are literally twice the price of the simpler end of the market
  
• How big do you want it?  A630 size? Pocketable?  Belt case?  Shoulder strap case?
• How long do you want the zoom range - do you shoot very wide or very long?
• Do you want macro?
• Do you want a viewfinder?
• Do you want a flip/swivel screen
• Are you happy with auto everything?  Or do you want control?
• If you want control, do you want it via menus or via external buttons?
• Do you have a need for larger prints?

Read up on the models that appeal - tests, reviews, user reports and so on.  Then check a few out in the hand and discuss with a salesman -  who'll help you narrow it down if he's at all helpful.

• The current A series is now up to the A1300.  It's a very basic camera with a 28-140mm (equiv) rather slow lens that sells on-line for about $79.00. 
• Moving on up, the SX160 is a well featured super zoom with a huge 28-448 equivalent zoom range for just under $200.
• The S Series has evolved up to the S110.  These are slightly cheaper, smaller and more pocketable than the top of the line G series.  The S110 is touch-screen-driven, has a 1/1.7 sensor, a useful 24-120 lens and sells online for about $400.
• Then the G series.......  If you really can't be bothered thinking too much about it, are happy with the A630's zoom range, and you can afford the better end of the market, consider a G15.  It's Canon's top of the line small compact now and you won't be disappointed. It's well made.  It has a full auto mode if you want it; and extensive control if you want to expand. It has the latest and fastest AF in Canon's range.  No flip screen though.  It's image quality leaves many others behind and it will probably still be pleasing you in another six years time.  They're around $470 online.  
  

And that's just Canon.  Enjoy your purchase, whatever it is.

Cheers,  Rod