You're welcome friend
first, the stuff are good comparing to the specs you have ... go for it .. and I'm gonna give you a good system specs example for a cheaper price as a template.. take it in consideration for further knowledge need.
these are for desktop PC:
- CPU: an i3 with a frequency between 2.4 to 3.0 Ghz example:
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115077
- Ram: any DDR3 i3 compatible processor will do the job .. and just stick with 4 Gigabytes:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820178382
- Motherboard: this is a cheaper and very good one for a small and respectable specs :
http://www.newegg.com/Product/Product.aspx?Item=N82E16813138338
and it's compatible 1155 LGA and Core i7 / i5 / i3 / Pentium / Celeron (LGA1155)
- Graphic cards I would say a GT 430
http://www.newegg.com/Product/Product.aspx?Item=N82E16814125346
but if you can afford more, then GTX 460 is one the best cards Quality/Price ever made by nvidia in the Directx 11 fermi series
http://www.newegg.com/Product/Product.aspx?Item=N82E16814127646
I had GTX 460 in SLI months ago and they were fantastic (but keep in mind the game itself should be programmed to take advantage of multi GPU present in your machine .. not any game will be boosted by SLI or crossfire)
Hard disks and case you can choose whatever you like but keep in mind that a good hard disk speed is always better. SATA III or better (SSD)
with these specs .. this is a small list of games that you can run 100% comfortable in 1024*768 resolution considering that we have 460 gtx.
Crysis 2 Full options .. I ran it myself in 460 gtx 4 Gb ram and a quad 8200.
FEAR 3 .. fear series of game is too enjoyable as a game and doesn't eat much resources.. with such system you can run it in full HD resolution 1650
battlefield you play as well but (1024*768) comfotable .. more than that FPS decrease not because of the graphic card but because of CPU and memory.
Softwares:
3dsmax Photoshop Aftereffect zBrush Sonyvega ... you can use them with no problem .. something is sure that 3d rendering sucks even if rendered by farm .. always you wait when to render so don't use rendering as a reference to make a decision. (rendring in 3d packages is done using the CPU)
if you have any other question .. please drop a line
hope this help