Grammostola rosea drably colored? After a fresh moult even the normal colour form lookd great , but the red colour form looks even better.
Grammostola rosea (Normal colour form)

Grammostola rosea (Red colour form)

Sorry these pics are a little old and I will try and sort out new ones once they have moulted.

It does indeed sound as if your brother had a male. This is a shame not only for your brother but also for the male as it died before it had even the chance to mate, which is their main and only goal in life. This is a sad fact that I believe happens to many a male trarntula that is brought in a pet shop, as more often than not the shop owners are unawear of this and can't often tell the difference's between male and female tarantulas mature or otherwise.

WolfChan, its sounds as if you have a nice little set up going on there but you know if you wanted to you could proberly remove the light bulb and save electricity.
This species of spider comes from Chile and is found often quite high in the mountains.The temperature there max's out at around 20°C in the year, so room temperature should be warm enough without any additional heating.
The Light bulb may even stress you spider a little bit as in general spiders try to shun light as much as possible.
That said however if yours is feeding and moulting well then carry on the way you are doing things as its quite obviously happy with its home.