System Usage from Most to Least Important: Gaming, running a virtual mac, 3ds max, movies.
Parts Not Required: OS, keyboard and mouse.
Preferred Website(s) for Parts: http://www.egprices.com/
I am kinda limited with the parts available, newest ones probably being not available (for now)
Country of Origin: Egypt
SLI or Crossfire: in the future.
Parts Preferences: I had selected an i7 2600k but was told that unless am going to use 3 monitors for gaming am not going to notice a difference so am not sure if I should get an i5 now, considering that am going run a virtual mac machine should I stick with the i7?
VGA; I've chosen gtx 580 over 2 460 SLI, because I am planing to get another gtx 580 in the future
monitor: Samsung PX2370
a 100 dollars is 600 eg pounds, parts will usually cost slightly more than in the us.
am planing to keep this machine for at least 4 years, is that too much ;s?
Your help will be greatly appreciated because am pretty much a total newbie.
Can't answer your i5 vs i7 question, since I don't know what difference Hyper Threading would add to a virtual machine (i7's have HT and i5's do not).
In terms of how long you're system will last, it will be dependent on parts you select. SLI/Crossfire later on is a good way to add a year or so down the line for low cost, but you need to plan for it with a Power Supply that can handle both cards, as well as ideally a Motherboard with two PCI-e slots that run at least 8x/8x with two cards.
If I have time, may do some hunting for parts, but my suggestions will probably need an improvement or two.