I strongly recommend buying a "kit". It has everything you need to start except a set of dies, shell holder and a tumbler. Here is an excellent kit: http://www.midsouthshooterssupply.co...ku=00005085003
RCBS make a great kit as well. Both of these kits are lifetime investments and your GRANDKIDS could use it as long as it is taken care of. You can't say that about lower priced kits, like a LEE. Although many people love LEE stuff because it's cheap. People seem to always buy better quality reloading equipment as they grow.
A shell holder for 308 and a die set for 7mm08 is exacty what you need.