Bulk Insert Data In Millions - Lock Issue

Hi all,
Hope there is a quick fix for this:


I am inserting data from one table to another on the same DB. The
insert is pretty simple as in:

insert into datatable(field1, field2, field3)
select a1, a2, a3 from temptable...


This inserts about 4 millions rows in one go. And since I had the
'cannot obtain lock resources' problem, several methods were suggested
by some web sites:
1) one to split the insert into smaller chunks (I have no idea how I
can spit a insert to insert only n records at a time..)


2)to use waitfor - which I did but did not fix the error.


3)use bulk insert (in t-sql) - I dont know how to do this?


As I see I am simply trying to move data from one table to another
(ofcourse lots of data) in SQL Server 2000 and I dont see one simple
solution to the locking problem.


any ideas on how best I can do this will save my day!


thanks all.