You can buy a 1TB Sabrent for around £55 just now. I can't provide a link to the site as it's a competitor, but it shouldn't be hard to find.
Sabrent are a fairly well established brand that have proven themselves over the years. In fact I have had a Sabrent drive in my laptop for a couple of years now with no issues.
Oops, just seen you want the drive in a 2230 format, which seems more expensive due to the size.