Yeah. I also have a 160GB Seagate 7200.10, and it's horribly noisy.
And heres's a benchmark of my RAID0:
So even if that drive does get 145MB/s, my $100 RAID0 get's 100MB/s.
If I really wanted 150MB/s I'd just get a 3rd WD1600AAJS, and I'd still only be up to about $150.