[Good specs for a small tekkit server?]

If you can re-install the OS, and upgrade the ram then do it. You could get 8gbs for around 50 bucks. 4gbs will work for 3 people but with 667MHz you wont be processing much fast. The price for 4gbs to 8gbs is so small it doesn't make much sense to get fast 4gbs of ram.

Would these specs be noticably better? I have another computer but its not much different.

2.66 GHz Intel Core 2 Duo

4 GB 1067 MHz DDR3

Download 42.29

Upload 11.24

[Good specs for a small tekkit server?]

2 GHz Intel Core 2 Duo

4 GB 667 MHz DDR2 SDRAM

Download 56.41 Mbps

Upload 11.17 mbps

Its a very old computer and I will be having about 3 people on the server at once.