I have used, Checkpoint FW1, Axent Raptor, Alta Vista, Gauntlet, Cisco Pix, Watchguard FireboxII, Watchguard SoHo, Sonicwall Pro, and Sonicwall Soho. I ve ran speed tests as well as integrety tests against them all and while many score very close to the same the best overall <pricepoint included> IMHO is the Watchguard Firebox II, if its a smaller network <under say 20 machines> go for the soho product.