I hear that the best Graphic Design courses are being offered at Aptech in that Honda Building. They also offer Web programming. Very good idea to learn advance courses which are very expensive in the US.
I would highly recommend anyone to take these classes while in nepal for summer holiday. It cost about Rs. 8000 for 3 month session. Not that much compared to the cost of tuition in the US.
Last time I was there, they were offering
Basic Graphic Designing (Adobe Softwares)
WEb Programming (Flash and some more)
Multimedia Management
and few more.
When ytou are done, check out Java Cafe in Thamel. That's a cool place to hang out. Got great coffee, snacks and high speed free internet.
Have fun and Say Hi to everyone there.