notebooks are a pain sometimes

ok so my laptop is being really annoying right now. the ac plug on the back that charges it has decided its not going to work anymore. so i have 5 options,

1. Have the plug in fixed and pay a zillion dollars

2. Try and soder (sp?) it myself and save money but risk totally hosing my pc

3. Get a new laptop $$$$$$$$$

4. Use the desktop and give up portability (um NO)

5. Get a docking station and charge it thru that

well obviously #5 is the best option for now so now i'm trying to figure out which freakin docking station is right for my laptop. Ive looked on google and ebay and ive found like 3 or 4 different ones. UGH so do they all charge it or just some of them or what... I asked ronnie and he says its just like being pluged in...so to me, all i need is one that will charge my battery when its hooked up and that i can still use the notebook screen, the usb ports, and the pc card slot.

here are some that i found.:
1#'s
Convenience Station 157935-001
Convience Base EM 120971-001
120266-001

PP#'s
Docking Station (PP1006) and MEU (PP2055)

3#'s
Convenience Base 382500-001
EM-No-NIC-383500-001

ok so wtf are the differences?
This is compaq's listing: http://h18000.www1.hp.com/products/quickspecs/10379_na/10379_na.HTML
do i need a nic? I use wireless internet thru usb...the only time i need a nic is when my router fucks up and if this base thing charged my pc then i could go fix it on a battery charge...
what is the deal with pci slots...do i need one of those too? what is that for like to add another hard drive or something? i have my harddrives external thru usb also...
here's some other thing i found...


if anyone out there knows anything please help lol...