makings of a junk yard cluster ??

[Arden]

Hi Folk 

like most people involved in IT you tend to build you a "junk yard" of
redundant machines 

Ive just been through mine and found could at a push make 5 x86 PCs 

2x amd 400mhz
2x via 700mhz
1x amd duron 1200 

also have lots of spare nic cards 

Ive never looked at clusters before and this is just for fun (must have
way to much time on my hands) :) 

So I need to know would it be possible to build a cluster from these ?
I'm not sure if the nodes need to be matched in any way ?

dose anyone know where to find an idiots to setting one up ?

also what would the equivelent power be i.e would i just be making a
1gig space heater ?

Arden