hi excel gurus

am planning to learn excel programming using VBA preferrably. i am
with MS Access (VBA) and Visual Basic skillset. would appreciate if u
people can give me pointers as to what all topics/ areas that i have
to cover/learn inorder to start programming in ms excel using vba.
also would appreciate if u people can give me an insight as to what
type of application is being created in ms excel apart from reporting.
also is there is any sorta packaging (like in ms access and vb) in ms
excel.

thanx in advance and have a great weekend

regards
bala