Where can i get a best deal for canon sd450 digital camera?

www.beachcamera.com - $252
Digital1234.com - same price

half.com....... i'm looking for a canon sd550. WEDFKDSFAS

EBAY!

Try ebay of froogle

The best price I found from a reputable dealer was $306 shipped:

NewEgg: Canon SD450 Silver 5.0 MP Digital Camera - Retail, $299.99
$5.99 Three Day Shipping (Not available in HI, AK and PR)
at:
http://www.newegg.com/Product/Product.as...

ebay.com

You can try B&H Photo or JR Music, they have it for 275.00. If you live in NY or they have these stores in your state, you will have to pay tax.
I really like cameraworld.com site. I have bought many things from them. Everything they sell comes with a USA warranty and I don't have to pay tax.
Great service.
good luck