About to build a Soekris box for my firewall, and in the interests of getting everything as small and compact as possible, I'd like to replace my current Speedstream 5260 ADSL modem with something along the lines of Sangoma's S518 (http://www.sangoma.com/datasheets/p_s518adsl-specs). Nothing is said about it on the i386 hardware compatibility list, so before I throw money at it, I'd like to know if anybody has used it (or something similar) successfully.