I'd love some advice here ladies! I am starting to research a new road bike for next spring and am wondering whether I am better off trying to salvage what I have which is a '93 Cadex (Giant) carbon fiber or buying new. I used the Cadex for 5 years while training for and competing in about a dozen triathlons. I think I paid a little over $500 for it. The bike never treated me well and left me with a lot of shoulder and back pain. I think the frame may be too big or the geometry is off for me. DH thinks I can get by with the Cadex by playing around with the stem length, upgrading the saddle - just bascially giving the bike a makeover. OR - would this money be better spent just buying myself a new bike. I'd probably spend up to about $1000. I plan on this being my major form of exercise this spring/fall/summer and will probably ride 100 to 150 miles per week. Anyone have advice to offer?