For what ?
Because I don't understand how you have your HDD's hooked up to your router?
For what ?
I personally have the ReadyNas Ultra 6 plus
Here is a good site that I used in my research. They have quite a bit of reviews on the different NAS devices as well as benchmark them. This way you can compare performance which is also important.
http://www.smallnetbuilder.com/nas
Good luck in your decision.
Because I don't understand how you have your HDD's hooked up to your router?
I don't have my HDDs hooked up to a router. What I have is the following :
Modem>Airport Extreme router>LAN>Switch>LAN>Switch>ReadyNAS with 5 drives + ReadyNAS with 2 drives.
Accessing the ReadyNAS by LAN are 2x Win7 PCs, 3x NeoTV video streamers and 6x Sonos audio streamers.
Accessing the ReadyNAS by WiFi through the AExtreme are 2x iPhones, iPad and MacBook Air.
Guess I read it wrong, sorry.
Can I just get this?
http://www.netgear.com/home/products/wirelessrouters/work-and-play/wnr3500l.aspx#two
With like a USB Hub, and connect it to the USB on the router?
I've got a DS212j and it's great. No issues, fantastic OS.
FYI the benchmarks on SmallNetBuilder for high end NAS's like the ReadyNas Ultra 6 plus use Link Aggregation and Jumbo frames. That requires dual GigE Ethernet cards on your PC (possible) or Mac (not likely). You also need a managed GigE switch. Without Link Aggregation you're transfer speeds are limited to about 70Gb. Jumbo frame support was sketchy on some iMacs YMMV.
Yes I put Gb where I should have put MBps. 70MBps to 80MBps are typical for decent NAS's using a single GigE port. 100MBps is exceptional.
If we look at the OPs post they're unlikely to need anything so powerful as a quad bay RAID NAS. A single bay NAS like the DS112j ~$150 plus a 3TB HDD (why not they're cheap) would probably fit the bill.
PS drsox any reason you're not using Jumbo frames? I don't because my old iMac doesn't support it.