If you are willing to take a drive to Seremban, check out Lanwin Fashion on the main roads near to HSBC. Desmond is quite well know to the local community. Good stuff.

I also like Bonia shirts for men.

Cuff links from Marks & Spencer can be surprisingly affordable. I found a pair for about RM30 and for me it looks good. Some other designs will cost more, but not as costly as the RM100+ that other brands are priced at. Sometimes I don't understand why cuff links are so pricey.