Ideally, don't use WEP.. It's the oldest and the easiest to crack.. Currently, WPA2 is the best security protocol, but it's not perfect as someone who really wants to access your network, can do so.. Unfortunately, some of the older wireless adapters (old computers) don't have drivers which support WPA2.. Most newer ones do.... so it's not a problem unless you need to get an older machine connected to the network. According to the link below, the Dell Wireless 1395 802.11g Mini Card, DOES have WPA2-PSK support but you won't know for sure till you set up the router and attempt to connect using the wireless adapter.
As to which brand of router to use, for me, it's a toss-up.. I've used Linksys, Dlink, Netgear, Belkin, plus residential gateways which include routers like 2Wire, ActionTek, Westlink, and a couple of others.. In my experience, if you read the specifications of the router, you should be able to determine its limitations as to setup, security, speed, and reception. I've never purchased and extremely expensive one, although I've worked on a few, and much like you I generally don't need to contact their customer service reps.. Online documents and support work for me..
Hope this helps.