Need urgent help choosing parts for Sandybridge rig

I know this isn’t a good time to be buying a computer and all that, but my current one is failing (badly). I just got £310 from making a website for some guy, and that’s all I’m going to have for a few months since I’m 15 lol.
I’m starting some ICT course and I can’t go on with it with a crappy computer, so thats why I’m buying it… I’m not buying it for gaming or anything, just for multi-tasking and the very occasional game of call of duty or something.
The only CPU I’m going for is the Core i5 Sandybridge, since the AMD Phenom is a bit crap in benchmarks against the i5 without oc’ing it.
I’m not sure about all these chipsets and all that though, thats what I don’t know much about. Also, will a 400W psu work with a i5? I’m using most of the parts from my previous computer (400W psu, Ati HD 4670, Cpu cooler, fans).
So here are the parts I’m going to get:
– A new case (my old one is rubbish)
– A motherboard (Compatible with Intel Core i5 Sandybridge socket1155)
– Intel Core i5 Sandybridge
– RAM that is compatible with the mobo i’m getting
– A hard drive (probably getting the WD Caviar Black 750GB +64MB cache)
And that’s it I think…
Edit: Here are the parts I’ve chosen:
NZXT Guardian 921 LCD Meter Red LED Black Chassis Mid Tower Gaming Case - No PSU 273432
1 in stock £61.98 £61.98
Intel Core i5 2300 2.8GHz Socket 1155 6MB Cache retail Boxed Processor 252537
55 in stock £135.51 £135.51
Asus P8H67-V R3 H67 Socket 1155 8 Channel HD Audio ATX Motherboard 260483
28 in stock £75.78 £75.78
Corsair 4GB (2x2GB) DDR3 1333MHz Memory Kit Unbuffered CL9 178943
9 in stock £16.98 £16.98
Xenta SATA 3 Cable 6Gbps - 46cm 248882
865 in stock £1.98 £1.98
WD 500GB 3.5" SATA-III 6Gb/s Caviar Black Hard Drive - 7200rpm 32MB Cache 246034
>100 in stock £42.22 £42.22
Cart total inc vat: £334.45
*Free shipping on this order» Shipping Charge: £0.00
Total: £334.45
Good/bad?
Ty in advance
Thanks in advance
Answer #1
i think you should get a better power supply than 400 watt though for your i5 processor?? only my thoughts though
Answer #2
will a 400W psu work with a i5
Yes and probably will work better than the rig you had before.
Answer #3
Are you planning to use the CPU graphics? Then that PSU is enough. Only if you add a powerful gfx card, it might just on the border.
EDIT: Ah juist noticed tha bit aobut HD 4670. Since it’s a rather lowend card, 400W should be enough for it.