What gear ratios would be good?
So me and a few friends are planning a trip this summer across the country. The bike i've chosen to use is a Lemond Poprad. I know that this is probably not the ideal bike but it's steel and i like the way it fits. I also plan on using it as a commuter for around town before and after the trip. After talking around and looking on forums I've found that this will work. If people could do it back in the 70's i figure it can't matter too much, and I will be using a trailer. What I'm wondering is what I can do and what people think would be the best way to get a better ratio of gearing on the bike.
Right now I have a double in the front, 46 and 38, and a 9 speed, 12-26 in the back. I'm thinking I could either get a triple in the front or get a bigger range in the back, or both. I don't know if my deraileur in the front will accept a triple or if my shifters will take a triple and what it would entail to make it work. Basically I am just wondering what people think would be the best way to do it. I plan on talking to some bike shop people but thought i would get peoples opinions on here too.
I've been using this bike on road rides on the hills and have found the gearing to be ok, I just tend to have to push the big hills whether I'm feeling it or not. I figure with the weight I will be pulling it would be nice to have some lower gearing.