But do remember to drink plenty of tea inbetween the swops.
Also be careful to check the power supply voltages. Many routers use the same plug but operate on different voltages.
E.g, Netgear & Linksys @ 12 Volts, 2Wire @ 5.1 Volts, ADSL Nation X_Modem @ 9 V, Thompson 585 V7 @ 22 V
However ALWAYS check your own modems yourself !
Kind regards,
Walter