WTB: chips on boards & modules

we are looking for ddr1, ddr2 & ddr3 chips on non-working modules. 32 x 8, 64 x 4, 64 x 8, 128 x 4.  also looking for working modules. 256 mb thru 4 gig. laptop, desktop and server.  ddr1, ddr2 & ddr3. please forward offers with p/a