Cleaning up my Computer junkyard

If anyone is interested, i need to get rid of several old computers:
System 1 Miditower with (excerpts from dmesg):
total memory = 127 MB
cpu0: Intel Pentium (P54C) (586-class), 199.92 MHz, id 0x52c
cpu0: features 1bf
ex0 at pci0 dev 11 function 0: 3Com 3c905-TX 10/100 Ethernet (rev. 0x0)
wd0 at atabus0 drive 0:
wd0: 14664 MB, 29795 cyl, 16 head, 63 sec, 512 bytes/sect x 30033360 sectors
System 2:
CPU: AMD-K6(tm) 3D processor (400.91-MHz 586-class CPU)
Origin = “AuthenticAMD” Id = 0x58c Stepping = 12
Features=0x8021bf
AMD Features=0x80000800
real memory = 134201344 (127 MB)
rl0: port 0xb000-0xb0ff mem 0xd9800000-0xd98000ff ir
q 12 at device 13.0 on pci0
ad0: 8063MB [16383/16/63] at ata0-master UDMA33