Building a new pc-need help!

[r34ver]

This machine is finally dying after many years, so I've decided to build myself a new gaming rig. Well, I say gaming, but my budget will probably be around £700-£750, as well as stuff like disk drives and whatnot. I'm not going for a ridiculously powerful rig, just one that'll be able to handle the new games at good settings. This is my first time making a computer and I could really do with some help. Here's what I've pieced together so far, but I've been told it's not that good. Any advice would be great, cheers.

-Intel Core i5 660 3.33GHz Socket 1156 4MB L3 Cache Retail Box Processor
-Casecom 6788 Black Mid Tower Case with Full Black Interior/Exterior 120mm Blue LED Front Fan - No PSU
-Western Digital WD5000AAKS 500GB SATAII 7200RPM 16MB Cache - OEM Caviar Blue
-ASUS P7H55-M H55 Socket 1156 VGA HDMI Out 8 Channel Audio MATX Motherboard
-Kingston 4GB (2x2GB) DDR3 1600MHz HyperX Memory Kit CL9(9-9-9-27) 1.7 - 1.9V
-Corsair 650W TX Series PSU - 120mm Fan, 80+% Efficiency, Single +12V Rail
-XFX ATI Radeon HD 4870 1024MB GDDR5 PCI-Express Graphic

(not a complete rig obviously, just the key parts)

 

[r34ver]

Won't be needing an OS, and well, I have an old monitor I could use, but I really should get a new one. I wouldn't wanna spend anything more than my budget, but I could go up to £800 if a monitor was included I guess.

 

[r34ver]

Wow..an that'd be able to handle all of the latest games? I notice the PSU is only 550, is that sufficient enough for the rig?

 

[r34ver]

Never even considered getting something this powerful, thought it'd raise the budget considerably. Cheers for the help guys, I think I'll go with this. Just one question, will the 460 be alright with the 1920x1080 resolution on the more demanding games? As in, would crysis still be playable at high settings on that monitor? I ask because I really don't know much about monitor resolutions in relation to GPUs.

 

[r34ver]

Basically the more Graphic card RAM you have the better it runs if the resolutions are higher, that's why the 1GB 460 was recommended and not the 768MB one, I tihnk it will be fine.

Crysis is always a bitch no matter how good you're graphics cards are. Some guy had Quad SLI GTX 480's on youtube on a UD9 with a 980X Overclocked to 4.4GHz and he still dropped below 60 fps sometimes...

Crysis is just unholy..

Cheers for all the help guys, I've set up my basket, and will probably get round to ordering this in a week or so. Thanks again guys.

 

[r34ver]

Looking at the RAM pricing, I think I might try and go for a cheaper monitor, or even put off buying it for a while so that I can get better RAM. If i were to go for a cheaper monitor, the resolution isn't really an issue is it?