I am trying to increase the size of my windows (NTFS) partition. Currently it's the only formated space on the drive so enlarging it should not cause to many problems.

my mother board is an asus A8N-E
I have two SATA drives configured into a raid 0 configuration.
my existing partition is ~30.0 GB


the output of :fdisk -l givess


Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sda doesn't contain a valid partition table
Warning: invalid flag 0x0000 of partition table 5 will be corrected by w(rite)

Disk /dev/sdb: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sdb1 * 1 3824 30716248+ 7 HPFS/NTFS
/dev/sdb2 3825 38913 281852392+ f W95 Ext'd (LBA)