bench press: more weight or more reps?

[smurfitup]

Alright:

I used to weigh 270, and through dieting and exercising over the past 7 months I'm at 225. I've been lifting for a while now, and I'm pretty satisfied w/ my results w/ regards to strength. At this point, I'd like to become toned, have more muscle definition, etc. I live in Seoul right now (I'll be here for the next month), so my diet mostly consists of Korean food, which is generally very healthy. A trainer at the LA Fitness back home told me to just alternate days I worked out my different muscle groups, and I never really worried about working out my lower body since I figured it would get enough of a workout if I used the elliptical (and because my legs had to support my huge frame for so long). Maybe I'm wrong. I'm obviously here to get advice, so any recommendations would be much appreciated. Again, I don't care too much about getting jacked (in fact, I don't want to be one of those overweight guys at the gym w/ huge beefy arms because he only works out his biceps), but I'd like to be toned and achieve more muscle definition. Thanks!