well...opterons are server processors, not necessarily the best for a home pc considering their price as well as the motherboards and reg ecc ram you will likely need. The Core 2 Extreme are very fast processors, more suited for a desktop. If you can tell us what you want to use the pc for (gaming, video editing, etc) people will be able to give more advice.
i want to know benchmarks because i plan opn 3 GUP nvida 9800 and ill take my 2 hdds i got in this computers 320 and 500 money not and option i just want a law suet im get 1.2mil and i want build the best pc i can.
Since you got the money why not build 2 rigs? One OCed to the max with LN2(which will obviously kill the CPU,etc only used for bragging rights) and the other OCed to a very good level with a TEC(reguler gamin,every day work)?
Imo, you'd be better off spending $2k-3k and putting the rest in the bank or buy a high end car. Your rig will be "old" by middle of next year. And donating some money (to breast cancer research,etc wouldn't hurt either (hint: Tax break).
Less approx 41% for Federal and state income taxes: $780,000
Less the standard 33% of the original settlement ($396K) for your lawyer's contingency fees leaves you $384,000
So $384K at 8% from a nice, conservative money market gives you $30,720 a year. While the principal can't be taxed any more, since you paid it once already. You will still have to pay income tax on your earnings. So $18,432 a year to take home, or $1,536 a month.
So YES! - Buy yourself a computer! But you better not quit your day job.