I agree with both UKStrength as well as crazyfool405. Now let me give you might insight...
I too found out the hardway of how important carbohydrate timing is, specifically for insulin and blood sugar. If you're like me, then controlling insulin and blood sugar is the most vital part of my training next to keeping a high nitrogen balance (Protein and AAs). If you can do this, you can reach you're goals faster than ever. There are relatively 4 main times when I ingest carbs. Meal 1, Pre-Workout, Post-Workout, and the meal following Post-Workout.
For Meal 1 it's always Oats, Wheat Bran, cinammon and fruit (usually bananas and berries, sometimes green apples). For me there is no better CHO than Oats, nothing beats it. A bodybuilder can use oats for his primary need of carbs and can almost garauntee he/she will be successful.
For Pre-Workout it consists of WMS and Whey. I'll usually pull about 50g of WMS and 25-40g of whey. I take this about 1.5-2 hours before I workout to let it settle.
Now Intra-Workout, I don't use any carbs, I use EAAs (PW at the moment). The only carbs I take in during Intra are the trace amounts in Purple Wraath, if any.
Post-Workout, here's where I agree with crazyfool405. To be honest, it really isn't necessary to shoot yourself up with HI-GLY carbs, sure it might speed up the delivery but you're carbs are going to get to your muscles either way. What I do is take in 50g of WMS along with 40-50g of Whey. The reason being is, simple sugars just make me bloat and leave a crash-like effect afterwards. WMS is the best carb next to oats IMHO. Every positive note you might hear about it, believe it. For me there is absolutely no gastrointestinal issues and it goes down instantly. I seriously can take in like 60g in one session and have it feel like water, it's amazing.
Finally, the meal following Post-Workout. Just like UKStrength advised, take in a high protein source along with any and every type of green vegetable you can get. I prefer brocolli, green beans, spinach, celery, and/or spring mix salad. Have yourself some quality fats like almonds, olive oil, or fish oil and you're good to go.
Like I said, it's all about insulin control for me and by the looks of it, I rarely ever take in HI-GLY carbs unless it's strictly Intra or Post-Workout. I never take in HI-GLY Pre-workout, never. It makes me sluggish and blown everytime, which is why WMS is a God send. Carbohydrate timing is pretty simple and effective, you just have to figure out how you're body works. For some people taking in HI-GLY Pre, Intra, and Post works; hell, some even take it in all day long, pretty nuts. Also top this off with some quality insulin-mimickers and you'll be amazed.