u w0t m8?
If you can't afford much for a PSU, those are some of the best for $20-$30 that I've found. I wouldn't recommend them for an expensive build ever, but they're still fairly reliable.
Also on WD vs Seagate, I guess everyone's experience is difference. I've heard people say that Seagates are better than WD and vice versa. Just seems WD>Seagate is more common, so I generally recommend WD. It's just personal preference.