For which kind of riding?
That makes me want to answer "both kinds"
It's a good question, I'd just phrase it "What kinds of riding?".
@Marvin028, Generally it's regarded that shocks aren't needed for most kind of non-technical riding, at that shocks at that price point will be heavy and not very effective. Presuming you are looking at roads and canals or well made cycle paths, I think a rigid frame would be better. I'd suggest the reliable Subway if you want to shop at
Halfords.
Decathlon is another good shop in your price range.