Migrating a server to Debian amd64?

[Yassen Damyanov <yd@media-c.de>]

Hi all,

Couple of years experience with Gentoo but none with Debian. Need to
migrate an AMD-64 server running Gentoo Linux to Debian AMD-64.

Services:
  apache2,
  postfix + filters,
  ftp over TLS (vsftpd or proftpd),
  IMAPS (Courier-IMAP)
  SVN

Hardware:
Motherboard MSI K8MM, VIA K8M800 chipset
CPU AMD Athlon 64 Bit 3200+
VIA Rhine network card

My questions:

(1) Is the AMD64 port of Debian usable for a production server?

(2) Does anyone have / know about positive experience with the hardware
above?

(3) If (1) is to be answered with a definite 'yes', then what would you
recommend as steps to *remotely* convert the gentoo box into Debian amd64?

Any feedback and help will be greatly appreciated, thanks in advance!

Yassen