The HP mini is rated to be quite nice. The Globalsat BU353 is a very good receiver.
Here's my take on the BU353 versus the older MS receiver (Pharos 500) versus the new MS receiver (Navation 168) if you're interested.
http://www.laptopgpsworld.com/2184-testing-three-usb-gps-receivers
If you are in the United States and buy Streets&Trips 2009 or older bundle you get the Pharos 500 which is, in my opinion, a better receiver than the newer one that MS bundles.
There isn't a huge difference among the three. The biggest difference is plugging them into their extension cables and making sure you get them A) away from the computer and B) into a spot where they get a good view of the sky.
2008, 2009 and 2010 all continuously center the map when doing realtime navigation. The position icon never drifts much from one spot. The map is redrawn every second so it's really easy to use for nav. It's not quite a smooth continuous scroll but pretty darn close. I have not used anything older.
Obviously the maps will be most up to date on the 2010 release.
Oh yeah, there is a free downloadable version of 2010 if you want to take a look at it. It's full function and good for 60 days, then you have to buy it or it dies. That will give you lots of time to take a look at it and see what you think. If you have a desktop PC you can download it and play with it to see what you think. I don't use Streets&Trips much and my use is pretty trivial like yours. I still think 2010 is worth it. It's not like it's expensive, even at full retail.
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