WarAxe is a tekkit server that solves the problems commonly associated with other tekkit servers. Those usually being the following:

- Lag like no other
- Ban almost everything
- Are Half broken
- World Corruption
- immature staff

I recently started a tekkit server on a ridiculously powerful machine:
E3-1270v2 with 32GB's of RAM and a 90GB Corsair Enterprise SSD

With a low slot limit.
Its quality over quantity here. You can find the full server page here: http://www.planetminecraft.com/server/waraxe-tekkit-no-laglow-restrictionssmart-staffgraylist/