Well if this thread is going to turn into a test of penis length, then I may as well join in too, besides, I don't care for tennis all that much;
1 x A3000D
1 x A1200 (030 50MHz)
1 x A2000 (030 40MHz)
1 x A500
1 x A1000
1 x C64
1 x C128D
1 x Sega Master System
1 x Sega Mega Drive
1 x NES
1 x Nintendo Wii
1 x Nintendo DS Lite
1 x Q6600 (3.2GHz) Machine
1 x A64x2 Machine
1 x Sempron64 Machine
1 x Athlon XP Machine
1 x Celeron Tualatin w/2 x Voodoo II 8MB
2 x P4 Machines (1 with Rambus 8-))
1 x Pentium Machine
1 x 486DX4/100 Machine
1 x Olivetti M290 (rockin' 12MHz 286 :-D)
1 x Apple PowerBook
1 x Apple MacBook
1 x Apple eMac
I think thats it ;-)