Well I dont want to jump the gun, ill wait till the end of the day to know for sure but I believe I solved my wireless dropout issue.
Now this may have been the extreme way to go about it, but I firmly believe (pun intended) it had something to do with my routers firmware + ISP causing the problem. When I first bought the router, wireless did not originally work in Oregon (comcast), so I updated firmware, this solved the wireless issue.
However I just recently moved back to missouri (charter) and now I am getting dropouts so I called both linksys and charter to no avail as I found out on google most of you share.
Again, the issue was getting wireless dropouts with my cicso linksys router WRT45G2 v1.0 to both an iphone and PS3, while wired computer stayed online just fine.
The iphone would connect after 3 or 4 retries (couple of minutes), but the ps3 would always have to have its network connections reset, or do a power reset on the router.
Got tired of pulling the power plug out and back in every couple of hours and having to reset both devices,
So, this is what i did;
This process has to deal with DD-WRT http://www.dd-wrt.com/site/index
Its a third party router software for those of you who dont know.
I downloaded and installed the latest version of TFTP from their website, and then downloaded the 3 ".bin" files associated with my specific router when i did a specific search for its model # on their website.
I then changed the ip of the wired pc to 18.104.22.168.8 and DNS to 255.255.255.0, then uploaded the files in the instructed order using the tftp software.
Make sure you follow the instructions closely because if you screw up, you could end up with nothing but a paper weight. - This page helps a lot to read first - http://www.dd-wrt.com/wiki/index.php/Index:FAQ
You have to manually reset this particulars router power to get it to reset, and
It was a little finicky on setting up the password at first, i had to make sure username and password were simple for router setup login page, but allowed me to set a difficult password for wireless network.
Also instead of linksys's or cisco's setup page, this firmware is much more thorough and explains what you are looking at instead of the options being abbreviated. Easier to read to put it simply.
Hope this info helps.