Drill Bits Ordered/Pump Suggestions

[Grace's Dad]

I will be turning my 75 into a reef over the summer. I plan on drilling it next week when my bits get here. I was thinking of doing a closed loop w/ a calfo-horizontal overflow. I would like some input on pump brands as far as noise factor and pump life. Was thinking of external pump from the sump also. I run an Iwaki md40 rxt (Japanese) on the 125 and it is a little too loud.
Any suggestions on pumps (2) to equal ~25x turnover?

Thanks-Brian