It looks like you are off to a great start. You will find as you shoot more that you will want a lighter trigger pull. 3lbs used to be the norm for a light trigger pull, now most folks I know, myself included, like a much lighter one for long range work.
You can find good deal on a scope online. In fact just saw a Zeiss 6-20x50 with target knobs Demo models at: Zeiss - Camera Land NY
for $625-$679 depending on the reticle.
That is an awesome scope at a great price. You will need a 20moa base for it.
They normally sell for $900+
As far as bullets go the 210 Berger VLD's are awesome. They will provide you with great ballistics with the 300RUM. A buddy of mine dropped an elk with one at 715yds. They work!