Okay well i love the Mac OS X operating system, i cant be without it but the thing i see bad for the Mac that i want is for PC, Programs etc.
For the prize as 4000 dollar, What can i get for that in the PC World?
If I'm understanding you correctly, you want to use Windows for your primary OS (primary work)?
Assuming that's the case, I'd get a PC and hack it (presume ATM you don't want to bother with a DIY system so you have a single point of contact for warranty service).
Granted, a Mac can run Windows, there can be some issues here and there (some solved with more expensive solutions than a PC, some not at all; depends on the specific problem encountered).
Your other option (still based on ready-built systems), is to get a PC for Windows, and a Mini for OS X. Tad expensive, but would certainly get you both OS's.
Hacks have come a long way from what they were (hardware selection is important), it's worth checking out places like insanelymac.com before buying anything, even if you do decide a DIY solution is viable.
Assuming you want a Xeon based system (same W3680 CPU), spec out a
Dell Precision T3500. You can opt to get the upgrades from Dell or get them yourself (so long as you're willing to deal with the vendor for warranty support). That system also includes a 3 year onsite warranty, and that can be upgraded if you wish (worth going to the Pro version; warranty work is usually a much better experience than Apple, and a far cry better than what you'd get with a consumer grade system).
BTW, you can usually get better pricing over the phone.
6 core xeon or 6 core i7 ?
The only difference is ECC is enabled in the Xeon versions (i.e. i7-980X vs. W3680). Same features otherwise, and even the same price per Intel's published Quantity Price List.
Retail prices can differ though. But last I checked, the W3680 could be had for ~$1063USD. Not far off of the pricing for the i7-980X (based on new prices, not eBay or Craig's List).
There can be differences in other areas of the systems where corners may have been cut (i.e. small HDD, cheapest graphics card possible, PSU, case,....).
I do have to give Apple a leg up on the case, but that's not worth the price difference on it's own. Professionals needing a single point of contact for OS or warranty support is (i.e. user is earning a living with it). They usually don't have the time to deal with diagnosing the problem, shipping parts off, waiting for new one/s to arrive, and repair the system. Though there's some valid complaints as to the length of time it can take Apple to complete a warranty repair.
I'm more familiar with Dell, HP,... that get a person out next day on the standard warranty, and it's possible to get same day (i.e. 4hr) response coverage.
