Computer I saw on ebay

Conrado56

Honorable
Dec 22, 2013
13
0
10,510

USAFRet

Titan
Moderator
£289.99

With these things, you have to focus on what they don't say.
PSU? Unknown, and almost certainly crap
RAM? Make/model?
No SATA III ports (will impact if you want to put in an SSD later)
No USB 3.0 ports

If £289.99 (actually £400 once you include the OS) is your absolute top budget...maybe. But it really is lacking in quite a few areas. Calling it a "gaming PC" is quite a stretch.

You will soon be replacing several substandard parts.