Angie
The things that tend to be important are:
1. That the laptop has sufficient ram (memory), processor power and disk space to run the stuff you want to run for a couple of years. If it's just email and internet with a bit of word processing, you don't need that much. The difficulty is once she has the laptop her requirements will evolve.
2. A good keyboard is essential. I've probably used 20-30 laptops over the years and have been responsible for choosing standard specifications for a civil srvice department as well as building and supporting them. I bought my first personal laptop from Acer and the keyboard was pants even though the spec was great value for money. It's still being used in the salon but you have to spell check everything because the keyboard is so bad.
My general advice would be:
a. stick to a recognised make. Toshiba, Lenova and Dell have consistently good keyboards and decent builds.
b. Get the best one you can afford as it will last longer and cost less in the long run.
c. Don't pay the extra cover. If you want a long warranty buy one that comes with 3 years. If there is a problem with the machine it is likley to die within 12 months
d. Use the internet to get opinions and reviews on the machine before buying it.
e. Find the best deal on the internet and then get a local shop to match it.
The last couple of laptops I've bought have been from Dabs and this one seems a good deal
dabs.com - Lenovo R61i Dual Core T2310 1GB 120GB DVD±RW Vista Home Premium (NG1A6UK)
£300, good name, good keyboard (I'd still try it out) and better processor than the pink one. Loads of positive reviews.
I haven't found any reviews on the Medion.
When you do get one. Make sure you get some decent antivirus, spyware and firewall software on it as kids seem to succumb to following links and their laptops get pretty messy. PM me if you need any help.
Hope this helps.
Mike