We're considering using the Feed The Beast modpack for the SMP server instead of a custom pack. We're definitely not sticking with Tekkit and FTB has all of the mods we were planning to use in our custom server setup and they're all Bukkit ports.
Here's the current mod list:
Let me know what you guys think! The launcher is available right now but it's not quite ready with all the 1.4 mods. Also there's no server version available yet as far as I know.
Edit: I know it's similar to Tekkit, but FTB actually has the mod creators permission to include their mods so we don't have