Macbook Pro Wirless Signal Reception Issues - How to Improve?

I just bought a new Macbook Pro 17" laptop. A few feet away from me is my new Linksys WRT350N wireless router, and I get "choppy" network connectivity at times, moreso recently which leads me to suspect something electrical is nearby that may be interfering with the signal.
Yet, my friend who has a Dell laptop is surfing next to me, and around the apartment, from time-to-time and has no trouble. This has been the pattern for a while.
This leads me to believe that the antenna on the Macbook Pro may need a little boost; using a hardwired has no troubles at all.
I found this "solution": http://www.quickertek.com/products/Quicky.php
I wonder what others' experience has been and what creative solutions have been found that may be like or better than the above.
Thank you in advance.
Message was edited by: Forrest

That model has a max possible RAM fo 8GB (two 4GB modules). As long as you are not doing anything heavy-duty, 4GB (two 2GB modules) is probably OK for Mavericks. I have on MBP running Mav on 4GB with no indications it is struggling for more RAM.
Only buy RAM from a trusted Mac RAM reseller. I use Other World  Computing (their RAM listings for your model are here):
http://eshop.macsales.com/shop/memory/Apple_MacBook_MacBook_Pro/Upgrade/DDR3
Crucial.com is also good. Avoid Kingston ValuRAM. It has never been happy in Intel Macs. You will get the right RAM from either vendor. Can't say that for brick-n-mortar electronics stores. Too hard to find one with a resident geek who speaks Mac.
Installation is an easy do-it-yourself task; all you need is the right screwdriver. Handy video here:
http://eshop.macsales.com/installvideos/macbookpro_13_unibody/
As for the battery, there is a built-in utility that will show the current condition. Click and hold on your Apple menu. Hold down the OPTION key and the first item with change to System Information. Launch it. When it comes up. find "Power" in the left-hand contents pane and select it to get a battery report.      Looks like this:
Copy the information I've outlined in red and paste it into a response to your thread here. Those numbers describe the current condition of the battery.

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