um you could always try
http://www.mangaupdates.com/series.html?id=341 the main character here fits your description
http://www.mangaupdates.com/series.html?id=3954
http://www.mangaupdates.com/series.html?id=361 satoshi has glasses but his hair is silvery/blue

😁

[img]http://i293.photobucket.com/albums/mm52/MeeeisMeee/thkatie.jpg[/img]

<--------LOL...No? Gintama.

** [color=green]Mad people either have no sense or too many extra senses... [/color]**
[color=red]On the net, men are men, women are men and children are the FBI. =D[/color]

Quote from kitsuneHime

um you could always try
http://www.mangaupdates.com/series.html?id=341 the main character here fits your description
http://www.mangaupdates.com/series.html?id=3954
http://www.mangaupdates.com/series.html?id=361 satoshi has glasses but his hair is silvery/blue

😁
Already reading xxxHolic

in DNAngel, I actually went crazy over Dark, not Satoshi. That's why I don't really like glasses with a different hair colour. >__>;

Quote from bloodyflowers

Mangas from the author of My Barbaric Girlfriend, MORINAGA Ai , have usually guy with glasses but not necessarly black hair cry .
Sorry but I can mostly recommend some black haired guys:
(These were in ur wish list, if u havent read them yet)
You Are So Cool (He even uses glases in some part)
Beauty is the Beast
H2O (No glasses but black haired guys)
Ingenuo (No glasses)
Penguin Revolution (He looks terrible when he uses glasses though)
Yume Chu (No glasses)

I also second Penguin Revolution(What'dya mean? I think he looks really cute in glasses)!

My Heavenly Hockey Club
They Too Love
Baby Pop
Diamond Head
The Day of Revolution <== if you like Ouran, you'll sure to like this! 😀

Toumei Shounen
Sanjuuichiya
Keep Out (Kisaragi Hirotaka)
Kyou Kara Maou <== does dark gray count?
Nabari no Oh
Yami no Matsuei
Hikari to Yami no Logic
The Day of Revolution <== if you like Ouran, you'll sure to like this! 😀

Hope you didn't mind me adding some BL/yaoi...
Also, if you liked Watanuki from xxxHolic, I'd suggest checking out some xxxHolic dj too.

[url=http:////www.mangaupdates.com/showtopic.php?tid=42718][img]http://i366.photobucket.com/albums/oo105/CatzCradle64/Avis-Sigs/FunghiPower_zps2a00ba56copy_zpsfc03990e.png[/img][/url]

I just thought of a fairly new manga that has the Megane-kun type you're looking for...

Sket Dance

If I think of any others I might come back around.