Lawnmower advice
 

I was just watching the telly, and saw that Argos have 1/3 off lawnmowers.
I'm on the lookout for a mower and appreciate your advice.
I am leaning towards getting a 'hover collect mower' as the little Argos
advice box says that these are ideal for uneven lawns.
My lawn is 17m by 8m approx. (I'll measure it properly tomorrow)
How difficult is it to get those 'Wimbledon stripes' on your lawn?
Ideally I'd like a cheap quality lawnmower that's right for me lawn!

Thank you