Back after a year. Few questions?

[NakedClown]

So finally got settled in the new house and decided i want to do a salt tank again. Im just doing a simple tank.

Tank: 40 Breeder, drilled with overflow
Sump 40 breeder or a 29 gallon i have in garage
Lighting: retro 4x t5HO
Powerheads: still debating what to do
Skimmer: saw a ASM g3 on craigs that is a good deal. (open for suggestions)
i plan to run gfo reactors and all the fun stuff to help in the sump.

The main question i have is this is my first Drilled tank with a sump, plumbing the tank to sump and back is not a problem but the question i have is what size return pump should i get?

As far as stocklist:
Pair of snowflakes or platinums
1 RBTA
maybe a hammer. torch and a few acans for color

was going to do 30lb dry sand with 20 lbs live from a existing reef tank
and planned on 40lbs of rock from the same existing reef tank
the rock and sand are from a buddies 500 gallon that has been set up for almost 7 years now so i know the source and what the rock and sand have gone through.

Overall im stuck on the return pump and what powerheads to get, i always like the korilias when i had my last tank, just were alil "bulky" for a 40 gallon.

Always willing to hear sugguestions and thoughts as i dont know everything but i know enough since my last tank was 2 years old.

[Sk8r]

I'd say maybe a mag 9.5 or a 12. If you buy a 12, you can always use a valve to throttle down. Establish an ATO and plan to use kalk for your hammer and you'll be seeing a lot of growth: sub a frogspawn for the torch: torch is hot and tends to inhibit other corals. You might toss in a caulestra (candy cane: easy and prolific.)