Double check my calculations please?

[five-oh-3ski]

I am looking to build a press similar to the happy monkey i beam press. I have come across some W10x30 beams and was wondering if these would be strong enough to do a 92" span without central supports. I did some calculations and calculated the deflection to about 0.009" but was wondering if someone could double check my work? thanks in advance

[twizzstyle]

You'll need to provide the web and flange thickness.