No... if you are not overclocking just stick to a Xeon and H87/B85 board...
and up the GPU to a GTX760/770/R9 280X...

No point going with a CPU cooler as well, as well as high speed RAMs as Haswell CPUs do not take advantage of them.   No SSDs?

Here's one :

Intel Xeon E3-1230v3 3.3GHz RM799
Asrock B85 Killer mainboard RM299
G.Skill Aegis 1600MHz 8GB x2 RM478
Gainward GTX660 Dual Fan 2GB RM639
Seasonic S12 II 620W PSU RM299
WD Caviar Blue 1TB HDD RM189
CM Storm Scout II case RM279
Liteon 24x DVDRW RM59

Total - RM3529.00 from Idealtech.

LEL, CPU cooler won't magically improve the improvement.

I do catch your point, but intel's stock cooler also work almost perfectly with stock clock.

Cooler just cools. Only lower the tempt. No big significance tho. Xeon is good for gaming and rendering aswell. Just go with Value RAM. I don't think higher clock RAM is that big difference when rendering with a 1600 MHz RAM.

LEL, CPU cooler won't magically improve the improvement.

I do catch your point, but intel's stock cooler also work almost perfectly with stock clock. You won't need to fear bout overheat sort of problem at all as log as your case ventilation is good enough.

Nope, no mobo is future proof, be it those RM few k one also won't. Just grab it according to your needs.

If you think you want those "performance ram" for the aesthetic, then go ahead, no real disadvantage apart from being on the pricy side and may be some buyer remorse after DDR4 come out.

B85 should be able to run 1833mhz ram, not too sure, better double confirm. But worse, you can always under clock it and make it work in 1600mhz, which is guaranteed to be working.

Nope only certain games utilizes it but 1600MHz 8GB RAM is good enough. Like Human10 said. For rendering you might want a higher capacity RAM. In gaming higher clock won't do much. So yeah, just go with a 8GB or 16GB 1600MHz RAM.

not need 1866mhz or 2133mhz on b85.

it can boot. but the speed will reverse to 1600mhz.

You could try the below upgrades. However, do you know what PSU is bundled together with the rig?

Intel Pentium Dual Core G645 Intel Core i3 3220 - RM349
Saphire 7770 Vapor-X Sapphire R9 265 - RM599
Gigabyte B75M-D3V
Kingston 4GB DDR3 1333mhz
Xigmatec Casing
AOC 23inch monitor

Total - RM948 (prices are from Viewnet)

I see. I would recommend swapping a new FSP Hexa 500W, RM149 together as the upgrade.