MB Dead,,,have to rebuild...NEED ADVICE...PLEASE HELP!!

I posted this a couple days ago and got some great advice,,,just want to try one more time to confirm my decisions.

Ok I am reaching out for some help and advice. I had a home built system with the following components listed below.

1) Antec Nine Hundred Case

2) Asus A8N32-SLI Deluxe MB - DEAD!!

3) AMD Athlon 64 X2 4600+

4) MSI Geforce 7900 GS 256MB PCI-E x Video Card

5) 3GB Kingston PC3200 DDR400

6) 2 x 500GB Hard Drives

7) 2 x DVD+RW plextor 708A and a sony dru-820a

8) Ultra ULT31852 X2 X-Connect 550W Power Supply

9) 2 x 20" Samsung Monitors w/ DVI connections but I also have a 26" LG LCD 26lc2r that I can use instead

10) Plan on running vista

Long story short I had to ship the computer and in shipping the MB was damaged from what I have been told because now the computer will not boot or go to Bios or what ever it doesn't do when the MB is dead. This info is from a trusted source. So that said,,,I have been living off my laptop
and it is beginning to take a toll on it.

What I am asking is can anybody tell me what I should do given the current components out there,,,I have been out of the loop for a bit and don't know whats out there now.

1) do I look for a refurbished MB or is there a comparable one to it that is still being made?

2) Are any of the components worth saving and just reconfiguring the system with some new parts?

3) Do I just start over with the latest and greatest?

My Requirements:

1) Most speed and overall performance for the money.......on the net and when just multitasking at home

2) able to play any the latest games,,,I am not playing any multiplayer anymore and does not have to be flawless just able to play them with a decent picture

3) Would like to not spend more then $5-600...I know that just killed a lot of options. I am a little flexible though if its worth it.

So there it is,,,All suggestions are welcomed

Also,,,,if you recommend starting over,,,is anything I have listed worth posting on ebay?