I bought an ASA 5505 of eBay a few months ago. Two complaints I have about it: only 256 Mb of RAM and 10 user license. I’m a pretty heavy user ofmy Internet. Onnection, so I was running into constant slowdowns or drops due to license. The slowdowns are easy to take care of pretty cheap. Rather than spend $400 for a gig of Cisco memory, it turns out you can put a gig of RAM in your 5505 for under $30. Turns out that the ASA uses PC3200 DDR DIMMs. A trip to Fry’s, remove 3 screws, and replace the stock DIMM just like doing a PC upgrade and you’re done.