I realise I'm coming into this late, but to comment on the guy who was saying if you're an intelligent guy with a good heart you're fucked. That's so not true. If you're an intelligent guy with a good heart who's a wuss [no offense intended towards anyone, really], then you're fucked. Yes, projected image is no doubt an important factor in picking up girls. Realise this and change your image. Note: this DOES NOT require chaning your personality per-se. Pick up a banna republic catalog, look at how the men dress. Go to nordstrom's and look at how the male manaquins are dressed. If you can't afford those stores, go look, then goto a discount shop. You can get very similar clothes much cheaper at places like Ross and TJ Max. Kenneth Cole, DKNY, etc, etc, are your friend. I know for a fact you can pick up those brands in discount stores as well. Get yourself a nice pair of dress shoes, you can pick them up for $50-$70. Leather soled shoes are better. Not only will clothes like these show women that you care about your appearence, but you will also automaticaly pass any dress code that any place will have no matter where the night takes you. You really don't want to meet a hot girl and then not be able to go where she wants to go because you're wearing jeans and sneakers and the club has a dress code. Dressing well will make you feel better, which will make you FAR more successfull with the girls. Also, remeber, girls notice the details. Shine your new dress shoes before going out, and make sure that your socks are the same color as your belt.
Dressing the part will take care of 60% of projected image. Well fitting clothes will also help hide your spare tire if you need to hit the gym. If wearing nice pants and a button down shirt is too dressy for you, unbutton the top button and roll up your sleaves. If you roll up your sleaves, I can't stress enough, do it right. Just shoving your sleeves up will look sloppy.
Back to the wuss part: All you have to do is not do something you wouldn't do to your male friends. You can be your goofy self (this is probably best) but don't all of a sudden lay down and do whatever. I used to be the "Intelligent and good hearted ....not getting girls type" In retrospection, I can see where I just laid down... Calling too much will turn girls off (in fact, if you have caller ID, you should screen your calls...you don't HAVE to be available when/if they call you). Again, I stress, you don't have to be an ass to a girl to get her to like you, just don't appear to have low self esteem and don't appear to be desperate. Just be yourself, and maybe create an aura or 'being in demand' --this will help kick off a lot of girls natural competativeness
If other girls want you, there's got to be something worth having in you.
Honestly though, to those who post 'Am the only one who feels depresed .........' you imediately sound well, like, self depreciating.. if a guy can detect it, a girl definately can, and most don't find it attractive.
Oh, and Plan9 has some good advice, listen to it