Problem with HP is, their support in SA lately is rather scarce. If I had up to R10k to splash, I'd go for something from Asus.
Something like the ASUS F5RL-AP002E
Comes with a 2 year global fetch and repair warranty, which is good since you do a fair amount of traveling.
I WOULD, however, upgrade the RAM. Not sure how much this machine can handle, but memory's cheap these days. 2GB should be fine for your needs, but I'd get a 2GB sodimm, if the laptop can handle up to 4GB of ram, and add that to the 1GB already in there. Should be plenty.
Unfortunately I don't have any other brands worth looking at, on my pricelist. Sony is good, but way out of your price range.