Like you Bent -- my first grill was a Charbroil. The grill I currently own is a Weber. They may cost a few bucks more but certainly you can find one for under $400.00. I actually think this time of the year is the perfect time to go shopping for a grill because a lot of the stores are trying to reduce inventory for the winter.
One thing to keep in mind when purchasing a grill is the number of heat deflectors it contains at the bottom of the grill. The Charbroil I owned only had one but the Weber I have now has five... These deflectors are what keeps the grill from flaring up and burning whatever your grilling...
Here's a link to give you some tips on grill buying:
http://www.weber.com/bbq/pub/grill/guide/gas.aspx