I bought her a Garmin nüvi 780 from Best Buy for $269.
https://buy.garmin.com/shop/shop.do?cID=134&pID=13479
It was a bit more than I wanted to spend, but she's worth it. She was quite pleased. Her & her new boyfriend got horribly lost a couple weeks ago, so it turns out that it is a timely gift. I'm going over to help her get it set up today. Garmin told me that the 2009 maps are a free download within 30 days of registering online. For $300, you would think they would include a carrying case, oh well.