Dead Motherboard Please Help - Thanks!

So I have a PC with an intel xeon 3.06 GHz CPU
4GB RAM
400W PSU
4 SCSI Hard Drives
2 DVD CD/DVD RW Readers/Burners
One fan in front
One in back

The motherboard just died recently.
It was a Tyan s2665

I was wondering how difficult it would be to replace the motherboard.
Thanks for any help
Any motherboard recommendations would be highly appreciated also.
Thanks

Would it be easier for me to just buy a new 1TB Sata HDD?
If that would make it easier, I could just do that???

And sorry, but what do you mean by Serial Attached SCSI?
I'm sorry, I'm not too great with computers. More details would be helpful

Thanks though!

Yeah, well a friend gave it to me, saying it's mine if I fix it.
Well thanks so much anyway man, if anybody can tell me if I can find a Mobo on ebay that will support those, it would be great. Also it's 184 Pin RAM.

http://cgi.ebay.com.sg/TYAN-S2665- [...] 1|294%3A50

search around on ebay and price comparison sites, im sure your be able to find the same mobo to replace.

btw how do you kno the motherboard ahs died?

The same seller has a cheaper one running to but I hafta highlight the fact that he states the cpu's are tested and workin yet the mobo is not -.- fishy but if your willing to take the risk. Really tho I would have to say you would more than be best off just starting a new it can get costly to get older hardware to play well and still fall behind current budget components. Depending on the purpose and possible spending I don't think just grabbin a 1 TB is best option. I'm sure many ppl would disagree but again its all situational, external enclosures are fairly cheap these days and offer mobility ^^