Crothian said:
If you happen to be in my game and read this, don't let it detour you from the way you are going. I support your choice.

As one of Crothian's players and one of the main instigators for charging in eyes wide open.... I voted for Do it as is, but throw in some encounters to gain a level.
I'll throw just a little more info in the pot, as I think only one other of our group regularly reads the boards here and I don't think he will care....
I play a dwarven cleric in Crothian's game and am sitting at 3rd level (as is most of the rest of the party I believe). We have a myriad of hooks to choose from, for those that don't know Crothian's games are the definition of a dynamic world where the player's really do choose where they want to go. My dwarven cleric, who took a the Dwarven Cleric racial sub level from Races of Stone at 1st level (i.e. traded out Turning - ssshhhh, don't tell the rest of the party!) for Smite Giants and a d10 hit die has just arrived with the others at a Dwarven stronghold that has been in battle with kobolds for quite some time. Some giants have taken advantage of these dwarve's situation (just one of at *least* three possible hooks) and taken some things from the dwarves still holding the stronghold.
My character, with obvious despise of giants, is already making words towards helping these dwarves at the stronghold by stirring up trouble with these giants. At this point my character has no idea what type of giants these are, but even with some metagaming I know they are at least 4 CRs over our party's current level. Despite that, my character will be trying to convince the rest of the party to help this dwarven stronghold by mounting some "guerilla" warfare on these giants.
I already have some plans to proceed very carefully, they are giants after all, but my character feels an allegiance to these dwarves at this stronghold. So he will be trying to convince the others to go after these giants in some manner.
From the pure meta-gaming standpoint I know Crothian is not afraid to let a party member or members die along the way. One character has died since the campaign's start. I used to DM this group and we had many deaths along the way, so the group is used to the chance of character death. So my character (and player) is not making this decision thinking that he will take it easy on us. (though, hopefully we could gain one level before he hit the bulk of that force...

)
So in closing, my character should know how dangerous giants are and will encourage smart and careful planning should they agree to head this direction. This will hopefully help some, but I just think this is the decision my character would make if you drop the metagaming from the picture.