I just got an sms at 5pm to say that for the next 48 hours, all parts and accessories come with free shipping.
Free shipping is normally not all that exciting, but userviceit has some really cheap prices. They tend to sell the Ryco, noname sort of parts, so if you think K&N Air Filters are good value for money, you might want to give this is a miss. I made an order in September last year, and I found the parts to be consistently a few dollars less than SCA/Repco, even taking 20% off sale prices into account.
ie Auto transmission kit - Repco $21 SCA $17 Usi $13.50
Now its even better with free shipping. If you do your own car servicing and have an older car which doesn't need the name brand stuff, this is gold. I bought everything but spark plugs from this joint, and it came by courier in the same week.
Wow, some of their prices are expensive. NGK Iridium plugs for ~$27.. They sell for $24-$25 in stores here, and for $10-$11 from Amazon US.
Some prices might be decent for older cars, but from a quick look none of them are a standout. Guess though you can still find some bargains.