This is a question you will get many different responses on.

I'll be the first sucker to give it a try!!! Your set-up is about right. That's good you are taking the time to view the charts...many don't. The 415-420 is about perfect at 65 pound draw weight in my opinion for hunting whitetail deer.

If you dial your bow up to 70 pounds I would try and stay right around 440-450 grians with your bow. I like to stay around 6.5 grain per pound of draw weight for hunting deer. 5 gpp is for target only and the 8-9 gpp would be for heavy game.

It's hard to get your weight up with these quality GoldTips...I'm looking forward to seeing their new 2006 products. You might want to wait a week before you order anything, so you can check out their new 2006 products. They are all at the 2006 shot show as we speak.

IfGoldTips 2006 line-up doesn't have any heavier arrows, try Eastons new FMJarrows at 9.8 gpi in your 400 spine. They have several other choices for heavier arrows. Try for something right around 8.9 to 9.5 gpi in your 400 spine catagory. That should get your weight up for you and still keep your FOC within limits. The ST Axis Obsessionand the A/C/C all have good ratings. You can also leave your arrows the same length as your draw length to pick up some more weight (18 grains more).

As a last resort and ifwe can get proof that over-spined arrows are more accurate (I'm thinking they are)you can even jump up to a .340 spine class arrow and your weight will fall right into place.

For fun, check outthis link forsome minimum weight listings.
http://www.huntersfriend.com/arrowhelp/AMO-Minimum-Arrow-Weight-Chart.htm