@LoadWB
Yup, I bought an el-cheapo PCMCIA 5-in-1 card reader from ebay and it worked with my A1200 too, so I can read SD cards (which are generally cheaper & more convenient than CF). This along with the PCMCIA WiFi card (An orinoco from ebay) are the most useful (and probably cheapest) things that you can add to a desktop A1200.
Next step would be a cocolino (maybe) and a Subway USB... although with the 5-in-1 SD card reader i'm not really sure you even need USB... just copy the files over to the card, and since most laptops now have a card reader its even more useful. :-D