Really depends where your office is and what sort of commute you can tolerate.
Discovery bay, Cheung Chau, Lamma have a number of places which may be a little bit more spacious and cleaner than Wanchai.
There are some great deals available right now... whole hearted recommend that you take a look at
http://www.gohome.com.hk to figure out whats available.
Do keep in mind that the first year's tax in HK will kill you if you don't budget for it, as they take 1 year in arrears and 1 year in advance (so you end up paying two years taxes).
Not sure about which country you pay taxes in.. some countries have double taxation treaties. Best to ask an accountant... or see if you can get through to your countries chambers of commerce in HK (some of them are useful).