Thanks for everybody contribution...     
Here is the range of bonus for the following company: [Updated on 23 Mar 2008]
Carrier Malaysia - Contractual (majority)= 0 bonus, Managerial & Sales Engineer = depends.
CSA - No Bonus
Dell - zero to 1 month bonus
DHL - 2 months bonus
Digi - 2 to 4 months bonus
Entellium - No bonus
Exact software - No bonus
Exxon Mobil - 2 months fixed bonus (support departments, not sure about others)
Freescale - 1.5 months contractual plus performance 1-2 months
Great Eastern - clerical and executive ~ 2 months contractual + 1 to 4 months bonus, management ~ 1 month contractual + 1 to 4 months
HSBC (HDPM, HSBC Data Processing Malaysia) - 1 to 3 months performance bonus depends on rating
IBM - 1-2 months (including contractual)
Ivisgroup - 1 month contractual bonus, 2.5 months performance bonus
Magnum - 3-4 months
Maxis - ??? to 7 months bonus
MBF Cards - 2.8 - 4 months bonus (2008), 2.5 - 3+ months (2007)
Mesiniaga - No Bonus
OSK - 3 to 6 months bonus
Perodua - Around 6 months bonus
Petronas - 6 month + 1 month merit + loyalty bonus = 8 month
Prudential - 2 months contractual
Public Mutual (damansara) - 2 time bonuses (Performance bonus and year end bonus up to 6 months)
Roche = No bonus, but u can choose to split your annual income into 14 months and receive 2 months "bonus" at the end of 12 months
SAP - 2 to 3 months bonus
Scope International - 2 to 3 months bonus
Silverlake - No bonus
Sony EMCS Bangi - Bonus 2 times per year: April & October. Around 2.5 months total.
Standard Chartered Bank - Average 2.5 bonus
Technip Geoproduction = 1month + appraisal +- 4month
Toyota - 4 to 6 months bonus
York - average 5.5 month bonus and got people get 12 months bonus
YTL Power Services - 2 to 3 months depends on appraisal review

even clerk also gets 18 months bonus ???