Yes:-
1.) Change the optical drive to the Pioneer DVR-215BK (£1 odd for DVD-RAM comp.).
2.) Get slower memory (8000 or even 6400 - save £20 to £40 ish).
3.) A better P.S.U. (how about the Corsair TX 650W, will give you some headroom for upgrading and is on TWO so is about the same price as the Corsair VX 550W elsewhere).
4.) Aesthetics are a personal thing, but for about £7 more I prefer the Antec Three Hundred Ultimate Gaming Case.
The money saved on getting slower memory (which you probably wouldn't notice) will pay for the better drive, P.S.U. and case.