Mostly all teh routers are fine.. They do not require drivers
to be installed in your computer. Just TCP/IP stuff. Ive used D-link, 3 com, Belkin, Linksys and currently Netgear. All have worked fine.. some may be eaiser to setup specific access.. Linksys is now Cisco but I havew read of problems with the firmware of the new series and you have to update firmware.. 99.9% of the time this goes witout a hitch but I lost a router once updating firmware.. it can happen.
The netgear Im using is a dual speed wireless with 4 wired ports.. or a 4 port router with wireless access.. depends on how you look at it.. it has good range for the wireless and has functioned well on the wired part too.. Just do a search on a model to see if there is alot of problems known, and if theyve figureed the fix for them.. but in general they are all fine.. som ehave more bells and whistles etc..
As for changing the IP.. it is fine.. just be sure DCHP is running/enabled It will adjust your comps IP so it is inline with router.. and if you change it might as well change it from 192.xxx.xxx.xxx to some other range.. like 48.xxx.xxx.xxx . you might change it because all the routers are default of 192.xxx.xxx something like that.. They all use the same IP or similar from each manufacturer.. the mask can also be reduced but I wont go into that atm.. and under DCHP users you can set the number to the max comps youll have on network..