I've been using Siamese v2.5 for years. I originally used it to retarget the graphics on my Amiga 1200 to my (then) Pentium 1 Win95 desktop, using the PC as a graphics card to display a nice 1024x768 workbench on the PC monitor.
I still use it now with my A3000 to share drives with my P4 WinXP machine and to access the PC drives. As my A3000 doesn't have it's own CD ROM drive, I installed OS3.5 by inserting the CD in my PC and accessing it through Siamese just as if it was connected to the Amiga.
It also has a few nifty features like allowing you to share one mouse and keyboard between the 2 machines and using the printer connected to the PC to print from the Amiga.
I've only used it over a serial link, but if your Amiga has a ethernet port then it should really fly.
Never used the old hardware Siamese, but it really is good software and a real shame that it was never developed beyond v2.5.
