iMac G4 Memory problem - hopefully half solved - and a Wifi bridge?

Someone pointed me at this, which appears to be the correct memory for the less accessible slot on the iMac G4 motherboard:

http://www.amazon.co.uk/Komputerbay-512MB-133Mhz-DESKTOP-MEMORY/dp/B003CH7MY0/ref=sr_1_6?s=electronics&ie=UTF8&qid=1405331250&sr=1-6&keywords=pc133+sdram+512

It's only £4, but it has to be part of an order of at least £10 or they won't deliver it. So I've gone for that plus The Long Mars which I was going to order anyway.

If that works I'll think about paying ebay / amazon prices for the SODIMM, e.g. about a tenner.

I'm very tempted to go all-out to restore this as it originally was, which means finding an early-ish Mac USB mouse and the weird clear plastic speakers. But these seem to be seriously expensive, so unless I get lucky on ebay etc. it probably isn't going to happen - any USB mouse works, and I think I can plug in ordinary speakers though I haven't tried it yet. Not as pretty, but possibly more practical...

later - also, does this seem to be the sort of bridging thing I need to give the computer fast Wifi - the engrish of the description isn't clear!

http://www.amazon.co.uk/gp/product/B00E9VU1BY/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=A376DTAQGFXKGP