Ohh yeah... 350 is already good... you can have a lot of choices...
but since you already have an slr with many lenses... I suggest that you save more and wait.... because digital slr prices are going down... and I think that will be your goal in the future anyway.
Canon Rebel Digital for less 1,000 with lens on it already.
Nikon for 1,400 without lense....
Yes, I know that this is very expensive... but at least you can have what you really want and been used to using and plus the variety of lenses that you already have.
For $350.00... Here are my recommendation...
Canon A70, Full Auto and Manual operation. Shutter and Aperture Priority. Audio and Video capture. Very low ISO=50 (really clean) and also uses AA battery formats... You can use rechargeables or just buy anywere. And 3.2 megapixel....
Heres the link
http://www.bestbuy.com/site/olspage.jsp?id=1051826104613&skuId=5348812&type=product&productCategoryId=cat04002
Another one is Minolta s414
Almost the same as Canon A70 but this one is 4 megapixel. Also uses AA battery
heres the link...
http://www.bestbuy.com/site/olspage.jsp?id=1051826110076&skuId=5367257&type=product&productCategoryId=cat04002
Maybe, it will go down to what brand to choose... but both of them have really high reviews....
You can do more research here.... www.dpreview.com
good luck...