Datafile and size

I have potentially 400 GB of data to store. There are two options I can think of:
1) use multiple small datafiles;
create tablespace TEST
datafile '/oradata/test.dbf' size 2048M
extent management local
2) use single bigfile tablespace.
PRO for 1) is easy to backup and recovery; CON is too many files. For the size of 400 GB, I need about 200 datafiles with 2 GB each (?)
PRO for 2) is only one datafile to use; CON is the size will be very big. It will make it difficult to backup and recovery.
Would you please offer some suggestions or opinion?
Thanks
Scott

I understand that with the default 8K blocksize, I can have a datafile as big as 32 G. For the small tablespace with multiple datafiles option, should I keep the size < 2G or < 32G?Little correction required.
The maximum size of the single datafile or tempfile is 128 terabytes (TB) for a tablespace with 32K blocks and 32TB for a tablespace with 8K blocks.
http://docs.oracle.com/cd/B19306_01/server.102/b14237/limits002.htm#sthref2833
As Mark above and Tom (in the same link) are saying "but over time, things change. Today in 2006, I would not have any problem with a file larger than 2gig - the tools have all caught up to the fact that files can and do get larger."
So, just start with smallfile tablespace and add the datafiles as and when needed. And one more thing, there is no relationship of big/small file tablespace in view of performance, because tablespace is a logical term of Oracle database. I/Os are related with datafile and OS not with tablespace.
If someone is searching for I/O tuning then I think he/she is doing a scientific approach to the problem rather than searching for performance vs tablespace issues. I am not finding a link where Sir Thomas kyte has said that the same something like this, even docs are wrong on this issue.
Regards
Girish Sharma

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