[Lilux-help] Which distro as server... ?

Hi, (let the fight begin) I'm going to set up a new la{firebird,mysql}p/mail/ftp server in a near future and I wonder which distro I should choose... I have already a box (doing the same kind of services) running debian sarge, which is fine, but 2 things bother me with sarge: - sarge is outdated (kernel 2.6.8, php only V4, no mysql 5) - the new release (etch) will (hopefully) be out in 6 month So I would end up installing an outdated distro, which is only 1 year old by now... How long will debian provide security updates for sarge? I have a strong temptation to go with ubuntu dapper, which I have made good experiences with. Dapper is up-to-date, feels good, and has 5 years security updates for the server version. Only backdraw is that my colleagues are debian die-hards and seem not yet to be pleased so much with the new kid on the block... Also, most of our firewalls in the wild run sarge, so we have a very good knowledge about that specific release. Which distro, sarge, dapper or any other, would you recommend for this purpose? Best regards, Yves